Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 3589 insertions, 0 deletions

diff --git a/build/gyp_includes/common.gypi b/build/gyp_includes/common.gypi
new file mode 100644
index 0000000000..457059e446
--- /dev/null
+++ b/build/gyp_includes/common.gypi
@@ -0,0 +1,3589 @@
+# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# IMPORTANT:
+# Please don't directly include this file if you are building via gyp_chromium,
+# since gyp_chromium is automatically forcing its inclusion.
+{
+  # Variables expected to be overriden on the GYP command line (-D) or by
+  # ~/.gyp/include.gypi.
+  'variables': {
+    # Putting a variables dict inside another variables dict looks kind of
+    # weird.  This is done so that 'host_arch', 'chromeos', etc are defined as
+    # variables within the outer variables dict here.  This is necessary
+    # to get these variables defined for the conditions within this variables
+    # dict that operate on these variables.
+    'variables': {
+      'variables': {
+        'variables': {
+          'variables': {
+            # Whether we're building a ChromeOS build.
+            'chromeos%': 0,
+
+            # Whether or not we are using the Aura windowing framework.
+            'use_aura%': 0,
+
+            # Whether or not we are building the Ash shell.
+            'use_ash%': 0,
+          },
+          # Copy conditionally-set variables out one scope.
+          'chromeos%': '<(chromeos)',
+          'use_aura%': '<(use_aura)',
+          'use_ash%': '<(use_ash)',
+
+          # Whether we are using Views Toolkit
+          'toolkit_views%': 0,
+
+          # Use OpenSSL instead of NSS. Under development: see http://crbug.com/62803
+          'use_openssl%': 0,
+
+          'use_ibus%': 0,
+
+          # Disable viewport meta tag by default.
+          'enable_viewport%': 0,
+
+          # Enable HiDPI support.
+          'enable_hidpi%': 0,
+
+          # Enable touch optimized art assets and metrics.
+          'enable_touch_ui%': 0,
+
+          # Is this change part of the android upstream bringup?
+          # Allows us to *temporarily* disable certain things for
+          # staging.  Only set to 1 in a GYP_DEFINES.
+          'android_upstream_bringup%': 0,
+
+          # Override buildtype to select the desired build flavor.
+          # Dev - everyday build for development/testing
+          # Official - release build (generally implies additional processing)
+          # TODO(mmoss) Once 'buildtype' is fully supported (e.g. Windows gyp
+          # conversion is done), some of the things which are now controlled by
+          # 'branding', such as symbol generation, will need to be refactored
+          # based on 'buildtype' (i.e. we don't care about saving symbols for
+          # non-Official # builds).
+          'buildtype%': 'Dev',
+
+          'conditions': [
+            # ChromeOS implies ash.
+            ['chromeos==1', {
+              'use_ash%': 1,
+              'use_aura%': 1,
+            }],
+
+            # For now, Windows builds that |use_aura| should also imply using
+            # ash. This rule should be removed for the future when Windows is
+            # using the aura windows without the ash interface.
+            ['use_aura==1 and OS=="win"', {
+              'use_ash%': 1,
+            }],
+            ['use_ash==1', {
+              'use_aura%': 1,
+            }],
+
+            # A flag for BSD platforms
+            ['OS=="dragonfly" or OS=="freebsd" or OS=="netbsd" or \
+              OS=="openbsd"', {
+              'os_bsd%': 1,
+            }, {
+              'os_bsd%': 0,
+            }],
+          ],
+        },
+        # Copy conditionally-set variables out one scope.
+        'chromeos%': '<(chromeos)',
+        'use_aura%': '<(use_aura)',
+        'use_ash%': '<(use_ash)',
+        'os_bsd%': '<(os_bsd)',
+        'use_openssl%': '<(use_openssl)',
+        'use_ibus%': '<(use_ibus)',
+        'enable_viewport%': '<(enable_viewport)',
+        'enable_hidpi%': '<(enable_hidpi)',
+        'enable_touch_ui%': '<(enable_touch_ui)',
+        'android_upstream_bringup%': '<(android_upstream_bringup)',
+        'buildtype%': '<(buildtype)',
+
+        # Sets whether we're building with the Android SDK/NDK (and hence with
+        # Ant, value 0), or as part of the Android system (and hence with the
+        # Android build system, value 1).
+        'android_build_type%': 0,
+
+        # Compute the architecture that we're building on.
+        'conditions': [
+          ['OS=="win" or OS=="ios"', {
+            'host_arch%': 'ia32',
+          }, {
+            # This handles the Unix platforms for which there is some support.
+            # Anything else gets passed through, which probably won't work very
+            # well; such hosts should pass an explicit target_arch to gyp.
+            'host_arch%':
+              '<!(uname -m | sed -e "s/i.86/ia32/;s/x86_64/x64/;s/amd64/x64/;s/arm.*/arm/;s/i86pc/ia32/")',
+          }],
+
+          # Set default value of toolkit_views based on OS.
+          ['OS=="win" or chromeos==1 or use_aura==1', {
+            'toolkit_views%': 1,
+          }, {
+            'toolkit_views%': 0,
+          }],
+
+          # Set toolkit_uses_gtk for the Chromium browser on Linux.
+          ['(OS=="linux" or OS=="solaris" or os_bsd==1) and use_aura==0', {
+            'toolkit_uses_gtk%': 1,
+          }, {
+            'toolkit_uses_gtk%': 0,
+          }],
+
+          # Enable HiDPI on Mac OS and Chrome OS.
+          ['OS=="mac" or chromeos==1', {
+            'enable_hidpi%': 1,
+          }],
+
+          # Enable touch UI on Metro.
+          ['OS=="win"', {
+            'enable_touch_ui%': 1,
+          }],
+        ],
+      },
+
+      # Copy conditionally-set variables out one scope.
+      'chromeos%': '<(chromeos)',
+      'host_arch%': '<(host_arch)',
+      'toolkit_views%': '<(toolkit_views)',
+      'toolkit_uses_gtk%': '<(toolkit_uses_gtk)',
+      'use_aura%': '<(use_aura)',
+      'use_ash%': '<(use_ash)',
+      'os_bsd%': '<(os_bsd)',
+      'use_openssl%': '<(use_openssl)',
+      'use_ibus%': '<(use_ibus)',
+      'enable_viewport%': '<(enable_viewport)',
+      'enable_hidpi%': '<(enable_hidpi)',
+      'enable_touch_ui%': '<(enable_touch_ui)',
+      'android_upstream_bringup%': '<(android_upstream_bringup)',
+      'android_build_type%': '<(android_build_type)',
+
+      # We used to provide a variable for changing how libraries were built.
+      # This variable remains until we can clean up all the users.
+      # This needs to be one nested variables dict in so that dependent
+      # gyp files can make use of it in their outer variables.  (Yikes!)
+      # http://code.google.com/p/chromium/issues/detail?id=83308
+      'library%': 'static_library',
+
+      # Override branding to select the desired branding flavor.
+      'branding%': 'Chromium',
+
+      'buildtype%': '<(buildtype)',
+
+      # Default architecture we're building for is the architecture we're
+      # building on.
+      'target_arch%': '<(host_arch)',
+
+      # This variable tells WebCore.gyp and JavaScriptCore.gyp whether they are
+      # are built under a chromium full build (1) or a webkit.org chromium
+      # build (0).
+      'inside_chromium_build%': 1,
+
+      # Set to 1 to enable fast builds. It disables debug info for fastest
+      # compilation.
+      'fastbuild%': 0,
+
+      # Set to 1 to enable dcheck in release without having to use the flag.
+      'dcheck_always_on%': 0,
+
+      # Disable file manager component extension by default.
+      'file_manager_extension%': 0,
+
+      # Python version.
+      'python_ver%': '2.6',
+
+      # Set ARM version (for libyuv)
+      'arm_version%': 6,
+
+      # Set ARM-v7 compilation flags
+      'armv7%': 0,
+
+      # Set Neon compilation flags (only meaningful if armv7==1).
+      'arm_neon%': 1,
+      'arm_neon_optional%': 0,
+
+      # The system root for cross-compiles. Default: none.
+      'sysroot%': '',
+
+      # The system libdir used for this ABI.
+      'system_libdir%': 'lib',
+
+      # On Linux, we build with sse2 for Chromium builds.
+      'disable_sse2%': 0,
+
+      # Use libjpeg-turbo as the JPEG codec used by Chromium.
+      'use_libjpeg_turbo%': 1,
+
+      # Use system libjpeg. Note that the system's libjepg will be used even if
+      # use_libjpeg_turbo is set.
+      'use_system_libjpeg%': 0,
+
+      # Use system libvpx
+      'use_system_libvpx%': 0,
+
+      # Variable 'component' is for cases where we would like to build some
+      # components as dynamic shared libraries but still need variable
+      # 'library' for static libraries.
+      # By default, component is set to whatever library is set to and
+      # it can be overriden by the GYP command line or by ~/.gyp/include.gypi.
+      'component%': 'static_library',
+
+      # Set to select the Title Case versions of strings in GRD files.
+      'use_titlecase_in_grd_files%': 0,
+
+      # Use translations provided by volunteers at launchpad.net.  This
+      # currently only works on Linux.
+      'use_third_party_translations%': 0,
+
+      # Remoting compilation is enabled by default. Set to 0 to disable.
+      'remoting%': 1,
+
+      # Configuration policy is enabled by default. Set to 0 to disable.
+      'configuration_policy%': 1,
+
+      # Safe browsing is compiled in by default. Set to 0 to disable.
+      'safe_browsing%': 1,
+
+      # Speech input is compiled in by default. Set to 0 to disable.
+      'input_speech%': 1,
+
+      # Notifications are compiled in by default. Set to 0 to disable.
+      'notifications%' : 1,
+
+      # If this is set, the clang plugins used on the buildbot will be used.
+      # Run tools/clang/scripts/update.sh to make sure they are compiled.
+      # This causes 'clang_chrome_plugins_flags' to be set.
+      # Has no effect if 'clang' is not set as well.
+      'clang_use_chrome_plugins%': 1,
+
+      # Enable building with ASAN (Clang's -faddress-sanitizer option).
+      # -faddress-sanitizer only works with clang, but asan=1 implies clang=1
+      # See https://sites.google.com/a/chromium.org/dev/developers/testing/addresssanitizer
+      'asan%': 0,
+
+      # Enable building with TSAN (Clang's -fthread-sanitizer option).
+      # -fthread-sanitizer only works with clang, but tsan=1 implies clang=1
+      # See http://clang.llvm.org/docs/ThreadSanitizer.html
+      'tsan%': 0,
+
+      # Use a modified version of Clang to intercept allocated types and sizes
+      # for allocated objects. clang_type_profiler=1 implies clang=1.
+      # See http://dev.chromium.org/developers/deep-memory-profiler/cpp-object-type-identifier
+      # TODO(dmikurube): Support mac.  See http://crbug.com/123758#c11
+      'clang_type_profiler%': 0,
+
+      # Set to true to instrument the code with function call logger.
+      # See src/third_party/cygprofile/cyg-profile.cc for details.
+      'order_profiling%': 0,
+
+      # Use the provided profiled order file to link Chrome image with it.
+      # This makes Chrome faster by better using CPU cache when executing code.
+      # This is known as PGO (profile guided optimization).
+      # See https://sites.google.com/a/google.com/chrome-msk/dev/boot-speed-up-effort
+      'order_text_section%' : "",
+
+      # Set to 1 compile with -fPIC cflag on linux. This is a must for shared
+      # libraries on linux x86-64 and arm, plus ASLR.
+      'linux_fpic%': 1,
+
+      # Whether one-click signin is enabled or not.
+      'enable_one_click_signin%': 0,
+
+      # Enable Web Intents support in WebKit.
+      'enable_web_intents%': 1,
+
+      # Enable Chrome browser extensions
+      'enable_extensions%': 1,
+
+      # Enable browser automation.
+      'enable_automation%': 1,
+
+      # Enable printing support and UI.
+      'enable_printing%': 1,
+
+      # Enable Web Intents web content registration via HTML element
+      # and WebUI managing such registrations.
+      'enable_web_intents_tag%': 0,
+
+      # Webrtc compilation is enabled by default. Set to 0 to disable.
+      'enable_webrtc%': 1,
+
+      # PPAPI by default does not support plugins making calls off the main
+      # thread. Set to 1 to turn on experimental support for out-of-process
+      # plugins to make call of the main thread.
+      'enable_pepper_threading%': 0,
+
+      # Enables use of the session service, which is enabled by default.
+      # Support for disabling depends on the platform.
+      'enable_session_service%': 1,
+
+      # Enables theme support, which is enabled by default.  Support for
+      # disabling depends on the platform.
+      'enable_themes%': 1,
+
+      # Uses OEM-specific wallpaper resources on Chrome OS.
+      'use_oem_wallpaper%': 0,
+
+      # Enables support for background apps.
+      'enable_background%': 1,
+
+      # Enable the task manager by default.
+      'enable_task_manager%': 1,
+
+      # Enable FTP support by default.
+      'disable_ftp_support%': 0,
+
+      # XInput2 multitouch support is disabled by default (use_xi2_mt=0).
+      # Setting to non-zero value enables XI2 MT. When XI2 MT is enabled,
+      # the input value also defines the required XI2 minor minimum version.
+      # For example, use_xi2_mt=2 means XI2.2 or above version is required.
+      'use_xi2_mt%': 0,
+
+      # Use of precompiled headers on Windows.
+      #
+      # This is on by default in VS 2010, but off by default for VS
+      # 2008 because of complications that it can cause with our
+      # trybots etc.
+      #
+      # This variable may be explicitly set to 1 (enabled) or 0
+      # (disabled) in ~/.gyp/include.gypi or via the GYP command line.
+      # This setting will override the default.
+      #
+      # Note that a setting of 1 is probably suitable for most or all
+      # Windows developers using VS 2008, since precompiled headers
+      # provide a build speedup of 20-25%.  There are a couple of
+      # small workarounds you may need to use when using VS 2008 (but
+      # not 2010), see
+      # http://code.google.com/p/chromium/wiki/WindowsPrecompiledHeaders
+      # for details.
+      'chromium_win_pch%': 0,
+
+      # Set this to true when building with Clang.
+      # See http://code.google.com/p/chromium/wiki/Clang for details.
+      'clang%': 0,
+
+      # Enable plug-in installation by default.
+      'enable_plugin_installation%': 1,
+
+      # Enable protector service by default.
+      'enable_protector_service%': 1,
+
+      # Specifies whether to use canvas_skia.cc in place of platform
+      # specific implementations of gfx::Canvas. Affects text drawing in the
+      # Chrome UI.
+      # TODO(asvitkine): Enable this on all platforms and delete this flag.
+      #                  http://crbug.com/105550
+      'use_canvas_skia%': 0,
+
+      # Set to "tsan", "memcheck", or "drmemory" to configure the build to work
+      # with one of those tools.
+      'build_for_tool%': '',
+
+      # Whether tests targets should be run, archived or just have the
+      # dependencies verified. All the tests targets have the '_run' suffix,
+      # e.g. base_unittests_run runs the target base_unittests. The test target
+      # always calls tools/swarm_client/isolate.py. See the script's --help for
+      # more information and the valid --mode values. Meant to be overriden with
+      # GYP_DEFINES.
+      # TODO(maruel): Converted the default from 'check' to 'noop' so work can
+      # be done while the builders are being reconfigured to check out test data
+      # files.
+      'test_isolation_mode%': 'noop',
+      # It must not be '<(PRODUCT_DIR)' alone, the '/' is necessary otherwise
+      # gyp will remove duplicate flags, causing isolate.py to be confused.
+      'test_isolation_outdir%': '<(PRODUCT_DIR)/isolate',
+
+       # Force rlz to use chrome's networking stack.
+      'force_rlz_use_chrome_net%': 1,
+
+      'sas_dll_path%': '<(DEPTH)/third_party/platformsdk_win7/files/redist/x86',
+      'wix_path%': '<(DEPTH)/third_party/wix',
+
+      'conditions': [
+        # TODO(epoger): Figure out how to set use_skia=1 for Mac outside of
+        # the 'conditions' clause.  Initial attempts resulted in chromium and
+        # webkit disagreeing on its setting.
+        ['OS=="mac"', {
+          'use_skia%': 1,
+        }, {
+          'use_skia%': 1,
+        }],
+
+        # A flag for POSIX platforms
+        ['OS=="win"', {
+          'os_posix%': 0,
+        }, {
+          'os_posix%': 1,
+        }],
+
+        # NSS usage.
+        ['(OS=="linux" or OS=="solaris" or os_bsd==1) and use_openssl==0', {
+          'use_nss%': 1,
+        }, {
+          'use_nss%': 0,
+        }],
+
+        # Flags to use X11 on non-Mac POSIX platforms
+        ['OS=="win" or OS=="mac" or OS=="ios" or OS=="android"', {
+          'use_glib%': 0,
+          'use_x11%': 0,
+        }, {
+          'use_glib%': 1,
+          'use_x11%': 1,
+        }],
+
+        # We always use skia text rendering in Aura on Windows, since GDI
+        # doesn't agree with our BackingStore.
+        # TODO(beng): remove once skia text rendering is on by default.
+        ['use_aura==1 and OS=="win"', {
+          'enable_skia_text%': 1,
+        }],
+
+        # A flag to enable or disable our compile-time dependency
+        # on gnome-keyring. If that dependency is disabled, no gnome-keyring
+        # support will be available. This option is useful
+        # for Linux distributions and for Aura.
+        ['chromeos==1 or use_aura==1', {
+          'use_gnome_keyring%': 0,
+        }, {
+          'use_gnome_keyring%': 1,
+        }],
+
+        ['toolkit_uses_gtk==1 or OS=="mac" or OS=="ios"', {
+          # GTK+, Mac and iOS want Title Case strings
+          'use_titlecase_in_grd_files%': 1,
+        }],
+
+        # Enable file manager extension on Chrome OS.
+        ['chromeos==1', {
+          'file_manager_extension%': 1,
+        }, {
+          'file_manager_extension%': 0,
+        }],
+
+        ['OS=="win" or OS=="mac" or (OS=="linux" and use_aura==0)', {
+          'enable_one_click_signin%': 1,
+        }],
+
+        ['OS=="android"', {
+          'enable_extensions%': 0,
+          'enable_printing%': 0,
+          'enable_themes%': 0,
+          'enable_webrtc%': 0,
+          'proprietary_codecs%': 1,
+          'remoting%': 0,
+        }],
+
+        ['OS=="ios"', {
+          'configuration_policy%': 0,
+          'disable_ftp_support%': 1,
+          'enable_automation%': 0,
+          'enable_extensions%': 0,
+          'enable_printing%': 0,
+          'enable_themes%': 0,
+          'enable_webrtc%': 0,
+          'notifications%': 0,
+          'remoting%': 0,
+        }],
+
+        # Use GPU accelerated cross process image transport by default
+        # on linux builds with the Aura window manager
+        ['use_aura==1 and OS=="linux"', {
+          'ui_compositor_image_transport%': 1,
+        }, {
+          'ui_compositor_image_transport%': 0,
+        }],
+
+        # Turn precompiled headers on by default for VS 2010.
+        ['OS=="win" and MSVS_VERSION=="2010" and buildtype!="Official"', {
+          'chromium_win_pch%': 1
+        }],
+
+        ['use_aura==1 or chromeos==1 or OS=="android"', {
+          'enable_plugin_installation%': 0,
+        }, {
+          'enable_plugin_installation%': 1,
+        }],
+
+        ['OS=="android" or OS=="ios"', {
+          'enable_protector_service%': 0,
+        }, {
+          'enable_protector_service%': 1,
+        }],
+
+        # linux_use_gold_binary: whether to use the binary checked into
+        # third_party/gold.
+        ['OS=="linux"', {
+          'linux_use_gold_binary%': 1,
+        }, {
+          'linux_use_gold_binary%': 0,
+        }],
+
+        # linux_use_gold_flags: whether to use build flags that rely on gold.
+        # On by default for x64 Linux.  Temporarily off for ChromeOS as
+        # it failed on a buildbot.
+        ['OS=="linux" and chromeos==0', {
+          'linux_use_gold_flags%': 1,
+        }, {
+          'linux_use_gold_flags%': 0,
+        }],
+
+        ['OS=="android"', {
+          'enable_captive_portal_detection%': 0,
+        }, {
+          'enable_captive_portal_detection%': 1,
+        }],
+
+        # Enable Skia UI text drawing incrementally on different platforms.
+        # http://crbug.com/105550
+        #
+        # On Aura, this allows per-tile painting to be used in the browser
+        # compositor.
+        ['OS!="mac" and OS!="android"', {
+          'use_canvas_skia%': 1,
+        }],
+
+        ['chromeos==1', {
+          # When building for ChromeOS we dont want Chromium to use libjpeg_turbo.
+          'use_libjpeg_turbo%': 0,
+        }],
+
+        ['OS=="android"', {
+          # When building as part of the Android system, use system libraries
+          # where possible to reduce ROM size.
+          'use_system_libjpeg%': '<(android_build_type)',
+        }],
+      ],
+
+      # Set this to 1 to use the Google-internal file containing
+      # official API keys for Google Chrome even in a developer build.
+      # Setting this variable explicitly to 1 will cause your build to
+      # fail if the internal file is missing.
+      #
+      # Set this to 0 to not use the internal file, even when it
+      # exists in your checkout.
+      #
+      # Leave set to 2 to have this variable implicitly set to 1 if
+      # you have src/google_apis/internal/google_chrome_api_keys.h in
+      # your checkout, and implicitly set to 0 if not.
+      #
+      # Note that official builds always behave as if this variable
+      # was explicitly set to 1, i.e. they always use official keys,
+      # and will fail to build if the internal file is missing.
+      'use_official_google_api_keys%': 2,
+
+      # Set these to bake the specified API keys and OAuth client
+      # IDs/secrets into your build.
+      #
+      # If you create a build without values baked in, you can instead
+      # set environment variables to provide the keys at runtime (see
+      # src/google_apis/google_api_keys.h for details).  Features that
+      # require server-side APIs may fail to work if no keys are
+      # provided.
+      #
+      # Note that if you are building an official build or if
+      # use_official_google_api_keys has been set to 1 (explicitly or
+      # implicitly), these values will be ignored and the official
+      # keys will be used instead.
+      'google_api_key%': '',
+      'google_default_client_id%': '',
+      'google_default_client_secret%': '',
+    },
+
+    # Copy conditionally-set variables out one scope.
+    'branding%': '<(branding)',
+    'buildtype%': '<(buildtype)',
+    'target_arch%': '<(target_arch)',
+    'host_arch%': '<(host_arch)',
+    'library%': 'static_library',
+    'toolkit_views%': '<(toolkit_views)',
+    'ui_compositor_image_transport%': '<(ui_compositor_image_transport)',
+    'use_aura%': '<(use_aura)',
+    'use_ash%': '<(use_ash)',
+    'use_openssl%': '<(use_openssl)',
+    'use_ibus%': '<(use_ibus)',
+    'use_nss%': '<(use_nss)',
+    'os_bsd%': '<(os_bsd)',
+    'os_posix%': '<(os_posix)',
+    'use_glib%': '<(use_glib)',
+    'toolkit_uses_gtk%': '<(toolkit_uses_gtk)',
+    'use_skia%': '<(use_skia)',
+    'use_x11%': '<(use_x11)',
+    'use_gnome_keyring%': '<(use_gnome_keyring)',
+    'linux_fpic%': '<(linux_fpic)',
+    'enable_pepper_threading%': '<(enable_pepper_threading)',
+    'chromeos%': '<(chromeos)',
+    'enable_viewport%': '<(enable_viewport)',
+    'enable_hidpi%': '<(enable_hidpi)',
+    'enable_touch_ui%': '<(enable_touch_ui)',
+    'use_xi2_mt%':'<(use_xi2_mt)',
+    'file_manager_extension%': '<(file_manager_extension)',
+    'inside_chromium_build%': '<(inside_chromium_build)',
+    'fastbuild%': '<(fastbuild)',
+    'dcheck_always_on%': '<(dcheck_always_on)',
+    'python_ver%': '<(python_ver)',
+    'arm_version%': '<(arm_version)',
+    'armv7%': '<(armv7)',
+    'arm_neon%': '<(arm_neon)',
+    'arm_neon_optional%': '<(arm_neon_optional)',
+    'sysroot%': '<(sysroot)',
+    'system_libdir%': '<(system_libdir)',
+    'component%': '<(component)',
+    'use_titlecase_in_grd_files%': '<(use_titlecase_in_grd_files)',
+    'use_third_party_translations%': '<(use_third_party_translations)',
+    'remoting%': '<(remoting)',
+    'enable_one_click_signin%': '<(enable_one_click_signin)',
+    'enable_webrtc%': '<(enable_webrtc)',
+    'chromium_win_pch%': '<(chromium_win_pch)',
+    'configuration_policy%': '<(configuration_policy)',
+    'safe_browsing%': '<(safe_browsing)',
+    'input_speech%': '<(input_speech)',
+    'notifications%': '<(notifications)',
+    'clang_use_chrome_plugins%': '<(clang_use_chrome_plugins)',
+    'asan%': '<(asan)',
+    'tsan%': '<(tsan)',
+    'clang_type_profiler%': '<(clang_type_profiler)',
+    'order_profiling%': '<(order_profiling)',
+    'order_text_section%': '<(order_text_section)',
+    'enable_extensions%': '<(enable_extensions)',
+    'enable_web_intents%': '<(enable_web_intents)',
+    'enable_web_intents_tag%': '<(enable_web_intents_tag)',
+    'enable_plugin_installation%': '<(enable_plugin_installation)',
+    'enable_protector_service%': '<(enable_protector_service)',
+    'enable_session_service%': '<(enable_session_service)',
+    'enable_themes%': '<(enable_themes)',
+    'use_oem_wallpaper%': '<(use_oem_wallpaper)',
+    'enable_background%': '<(enable_background)',
+    'linux_use_gold_binary%': '<(linux_use_gold_binary)',
+    'linux_use_gold_flags%': '<(linux_use_gold_flags)',
+    'use_canvas_skia%': '<(use_canvas_skia)',
+    'test_isolation_mode%': '<(test_isolation_mode)',
+    'test_isolation_outdir%': '<(test_isolation_outdir)',
+    'enable_automation%': '<(enable_automation)',
+    'enable_printing%': '<(enable_printing)',
+    'enable_captive_portal_detection%': '<(enable_captive_portal_detection)',
+    'disable_ftp_support%': '<(disable_ftp_support)',
+    'force_rlz_use_chrome_net%': '<(force_rlz_use_chrome_net)',
+    'enable_task_manager%': '<(enable_task_manager)',
+    'sas_dll_path%': '<(sas_dll_path)',
+    'wix_path%': '<(wix_path)',
+    'android_upstream_bringup%': '<(android_upstream_bringup)',
+    'use_libjpeg_turbo%': '<(use_libjpeg_turbo)',
+    'use_system_libjpeg%': '<(use_system_libjpeg)',
+    'android_build_type%': '<(android_build_type)',
+    'use_official_google_api_keys%': '<(use_official_google_api_keys)',
+    'google_api_key%': '<(google_api_key)',
+    'google_default_client_id%': '<(google_default_client_id)',
+    'google_default_client_secret%': '<(google_default_client_secret)',
+
+    # Use system yasm instead of bundled one.
+    'use_system_yasm%': 0,
+
+    # Default to enabled PIE; this is important for ASLR but we may need to be
+    # able to turn it off for various reasons.
+    'linux_disable_pie%': 0,
+
+    # The release channel that this build targets. This is used to restrict
+    # channel-specific build options, like which installer packages to create.
+    # The default is 'all', which does no channel-specific filtering.
+    'channel%': 'all',
+
+    # Override chromium_mac_pch and set it to 0 to suppress the use of
+    # precompiled headers on the Mac.  Prefix header injection may still be
+    # used, but prefix headers will not be precompiled.  This is useful when
+    # using distcc to distribute a build to compile slaves that don't
+    # share the same compiler executable as the system driving the compilation,
+    # because precompiled headers rely on pointers into a specific compiler
+    # executable's image.  Setting this to 0 is needed to use an experimental
+    # Linux-Mac cross compiler distcc farm.
+    'chromium_mac_pch%': 1,
+
+    # The default value for mac_strip in target_defaults. This cannot be
+    # set there, per the comment about variable% in a target_defaults.
+    'mac_strip_release%': 1,
+
+    # Set to 1 to enable code coverage.  In addition to build changes
+    # (e.g. extra CFLAGS), also creates a new target in the src/chrome
+    # project file called "coverage".
+    # Currently ignored on Windows.
+    'coverage%': 0,
+
+    # Set to 1 to force Visual C++ to use legacy debug information format /Z7.
+    # This is useful for parallel compilation tools which can't support /Zi.
+    # Only used on Windows.
+    'win_z7%' : 0,
+
+    # Although base/allocator lets you select a heap library via an
+    # environment variable, the libcmt shim it uses sometimes gets in
+    # the way.  To disable it entirely, and switch to normal msvcrt, do e.g.
+    #  'win_use_allocator_shim': 0,
+    #  'win_release_RuntimeLibrary': 2
+    # to ~/.gyp/include.gypi, gclient runhooks --force, and do a release build.
+    'win_use_allocator_shim%': 1, # 1 = shim allocator via libcmt; 0 = msvcrt
+
+    # Whether usage of OpenMAX is enabled.
+    'enable_openmax%': 0,
+
+    # Whether proprietary audio/video codecs are assumed to be included with
+    # this build (only meaningful if branding!=Chrome).
+    'proprietary_codecs%': 0,
+
+    # TODO(bradnelson): eliminate this when possible.
+    # To allow local gyp files to prevent release.vsprops from being included.
+    # Yes(1) means include release.vsprops.
+    # Once all vsprops settings are migrated into gyp, this can go away.
+    'msvs_use_common_release%': 1,
+
+    # TODO(bradnelson): eliminate this when possible.
+    # To allow local gyp files to override additional linker options for msvs.
+    # Yes(1) means set use the common linker options.
+    'msvs_use_common_linker_extras%': 1,
+
+    # TODO(sgk): eliminate this if possible.
+    # It would be nicer to support this via a setting in 'target_defaults'
+    # in chrome/app/locales/locales.gypi overriding the setting in the
+    # 'Debug' configuration in the 'target_defaults' dict below,
+    # but that doesn't work as we'd like.
+    'msvs_debug_link_incremental%': '2',
+
+    # Needed for some of the largest modules.
+    'msvs_debug_link_nonincremental%': '1',
+
+    # Turns on Use Library Dependency Inputs for linking chrome.dll on Windows
+    # to get incremental linking to be faster in debug builds.
+    'incremental_chrome_dll%': '0',
+
+    # The default settings for third party code for treating
+    # warnings-as-errors. Ideally, this would not be required, however there
+    # is some third party code that takes a long time to fix/roll. So, this
+    # flag allows us to have warnings as errors in general to prevent
+    # regressions in most modules, while working on the bits that are
+    # remaining.
+    'win_third_party_warn_as_error%': 'true',
+
+    # This is the location of the sandbox binary. Chrome looks for this before
+    # running the zygote process. If found, and SUID, it will be used to
+    # sandbox the zygote process and, thus, all renderer processes.
+    'linux_sandbox_path%': '',
+
+    # Set this to true to enable SELinux support.
+    'selinux%': 0,
+
+    # Clang stuff.
+    'clang%': '<(clang)',
+    'make_clang_dir%': 'third_party/llvm-build/Release+Asserts',
+
+    # These two variables can be set in GYP_DEFINES while running
+    # |gclient runhooks| to let clang run a plugin in every compilation.
+    # Only has an effect if 'clang=1' is in GYP_DEFINES as well.
+    # Example:
+    #     GYP_DEFINES='clang=1 clang_load=/abs/path/to/libPrintFunctionNames.dylib clang_add_plugin=print-fns' gclient runhooks
+
+    'clang_load%': '',
+    'clang_add_plugin%': '',
+
+    # The default type of gtest.
+    'gtest_target_type%': 'executable',
+
+    # Enable sampling based profiler.
+    # See http://google-perftools.googlecode.com/svn/trunk/doc/cpuprofile.html
+    'profiling%': '0',
+
+    # Enable strict glibc debug mode.
+    'glibcxx_debug%': 0,
+
+    # Override whether we should use Breakpad on Linux. I.e. for Chrome bot.
+    'linux_breakpad%': 0,
+    # And if we want to dump symbols for Breakpad-enabled builds.
+    'linux_dump_symbols%': 0,
+    # And if we want to strip the binary after dumping symbols.
+    'linux_strip_binary%': 0,
+    # Strip the test binaries needed for Linux reliability tests.
+    'linux_strip_reliability_tests%': 0,
+
+    # Enable TCMalloc.
+    'linux_use_tcmalloc%': 1,
+
+    # Disable TCMalloc's debugallocation.
+    'linux_use_debugallocation%': 0,
+
+    # Disable TCMalloc's heapchecker.
+    'linux_use_heapchecker%': 0,
+
+    # Disable shadow stack keeping used by heapcheck to unwind the stacks
+    # better.
+    'linux_keep_shadow_stacks%': 0,
+
+    # Set to 1 to link against libgnome-keyring instead of using dlopen().
+    'linux_link_gnome_keyring%': 0,
+    # Set to 1 to link against gsettings APIs instead of using dlopen().
+    'linux_link_gsettings%': 0,
+
+    # Set Thumb compilation flags.
+    'arm_thumb%': 0,
+
+    # Set ARM fpu compilation flags (only meaningful if armv7==1 and
+    # arm_neon==0).
+    'arm_fpu%': 'vfpv3',
+
+    # Set ARM float abi compilation flag.
+    'arm_float_abi%': 'softfp',
+
+    # Enable new NPDevice API.
+    'enable_new_npdevice_api%': 0,
+
+    # Enable EGLImage support in OpenMAX
+    'enable_eglimage%': 1,
+
+    # Enable a variable used elsewhere throughout the GYP files to determine
+    # whether to compile in the sources for the GPU plugin / process.
+    'enable_gpu%': 1,
+
+    # .gyp files or targets should set chromium_code to 1 if they build
+    # Chromium-specific code, as opposed to external code.  This variable is
+    # used to control such things as the set of warnings to enable, and
+    # whether warnings are treated as errors.
+    'chromium_code%': 0,
+
+    'release_valgrind_build%': 0,
+
+    # TODO(thakis): Make this a blacklist instead, http://crbug.com/101600
+    'enable_wexit_time_destructors%': 0,
+
+    # Set to 1 to compile with the built in pdf viewer.
+    'internal_pdf%': 0,
+
+    # Set to 1 to compile with the OpenGL ES 2.0 conformance tests.
+    'internal_gles2_conform_tests%': 0,
+
+    # NOTE: When these end up in the Mac bundle, we need to replace '-' for '_'
+    # so Cocoa is happy (http://crbug.com/20441).
+    'locales': [
+      'am', 'ar', 'bg', 'bn', 'ca', 'cs', 'da', 'de', 'el', 'en-GB',
+      'en-US', 'es-419', 'es', 'et', 'fa', 'fi', 'fil', 'fr', 'gu', 'he',
+      'hi', 'hr', 'hu', 'id', 'it', 'ja', 'kn', 'ko', 'lt', 'lv',
+      'ml', 'mr', 'ms', 'nb', 'nl', 'pl', 'pt-BR', 'pt-PT', 'ro', 'ru',
+      'sk', 'sl', 'sr', 'sv', 'sw', 'ta', 'te', 'th', 'tr', 'uk',
+      'vi', 'zh-CN', 'zh-TW',
+    ],
+
+    # Pseudo locales are special locales which are used for testing and
+    # debugging. They don't get copied to the final app. For more info,
+    # check out https://sites.google.com/a/chromium.org/dev/Home/fake-bidi
+    'pseudo_locales': [
+      'fake-bidi',
+    ],
+
+    'grit_defines': [],
+
+    # If debug_devtools is set to 1, JavaScript files for DevTools are
+    # stored as is and loaded from disk. Otherwise, a concatenated file
+    # is stored in resources.pak. It is still possible to load JS files
+    # from disk by passing --debug-devtools cmdline switch.
+    'debug_devtools%': 0,
+
+    # The Java Bridge is not compiled in by default.
+    'java_bridge%': 0,
+
+    # Code signing for iOS binaries.  The bots need to be able to disable this.
+    'chromium_ios_signing%': 1,
+
+    # This flag is only used when disable_nacl==0 and disables all those
+    # subcomponents which would require the installation of a native_client
+    # untrusted toolchain.
+    'disable_nacl_untrusted%': 0,
+
+    # Disable Dart by default.
+    'enable_dart%': 0,
+
+    # The desired version of Windows SDK can be set in ~/.gyp/include.gypi.
+    'msbuild_toolset%': '',
+
+    # Native Client is enabled by default.
+    'disable_nacl%': 0,
+
+    # Whether to build full debug version for Debug configuration on Android.
+    # Compared to full debug version, the default Debug configuration on Android
+    # has no full v8 debug, has size optimization and linker gc section, so that
+    # we can build a debug version with acceptable size and performance.
+    'android_full_debug%': 0,
+
+    # Sets the default version name and code for Android app, by default we
+    # do a developer build.
+    'android_app_version_name%': 'Developer Build',
+    'android_app_version_code%': 0,
+
+    'sas_dll_exists': 0, # '<!(<(PYTHON) <(DEPTH)/build/dir_exists.py <(sas_dll_path))',
+    'wix_exists': 0, # '<!(<(PYTHON) <(DEPTH)/build/dir_exists.py <(wix_path))',
+
+    'windows_sdk_default_path': '<(DEPTH)/third_party/platformsdk_win8/files',
+#    'directx_sdk_default_path': '<(DEPTH)/third_party/directxsdk/files',
+    'windows_sdk_path%': '<(windows_sdk_default_path)',
+
+    'conditions': [
+      #['"<!(<(PYTHON) <(DEPTH)/build/dir_exists.py <(windows_sdk_default_path))"=="True"', {
+      #  'windows_sdk_path%': '<(windows_sdk_default_path)',
+      #}, {
+      #  'windows_sdk_path%': 'C:/Program Files (x86)/Windows Kits/8.0',
+      #}],
+      #['OS=="win" and "<!(<(PYTHON) <(DEPTH)/build/dir_exists.py <(directx_sdk_default_path))"=="True"', {
+      #  'directx_sdk_path%': '<(directx_sdk_default_path)',
+      #}, {
+      #  'directx_sdk_path%': '$(DXSDK_DIR)',
+      #}],
+      # If use_official_google_api_keys is already set (to 0 or 1), we
+      # do none of the implicit checking.  If it is set to 1 and the
+      # internal keys file is missing, the build will fail at compile
+      # time.  If it is set to 0 and keys are not provided by other
+      # means, a warning will be printed at compile time.
+      ['use_official_google_api_keys==2', {
+        'use_official_google_api_keys%':
+            '<!(<(PYTHON) <(DEPTH)/google_apis/build/check_internal.py <(DEPTH)/google_apis/internal/google_chrome_api_keys.h)',
+      }],
+      ['os_posix==1 and OS!="mac" and OS!="ios"', {
+        # Figure out the python architecture to decide if we build pyauto.
+	# disabled for mozilla because windows != mac and this runs a shell script
+	#        'python_arch%': '<!(<(DEPTH)/build/linux/python_arch.sh <(sysroot)/usr/<(system_libdir)/libpython<(python_ver).so.1.0)',
+        'conditions': [
+          # TODO(glider): set clang to 1 earlier for ASan and TSan builds so
+          # that it takes effect here.
+          # disabled for Mozilla since it doesn't use this, and 'msys' messes $(CXX) up
+          ['build_with_mozilla==0 and clang==0 and asan==0 and tsan==0', {
+            # This will set gcc_version to XY if you are running gcc X.Y.*.
+            'gcc_version%': '<!(<(PYTHON) <(DEPTH)/build/compiler_version.py)',
+          }, {
+            'gcc_version%': 0,
+          }],
+          ['branding=="Chrome"', {
+            'linux_breakpad%': 1,
+          }],
+          # All Chrome builds have breakpad symbols, but only process the
+          # symbols from official builds.
+          ['(branding=="Chrome" and buildtype=="Official")', {
+            'linux_dump_symbols%': 1,
+          }],
+        ],
+      }],  # os_posix==1 and OS!="mac" and OS!="ios"
+      ['OS=="ios"', {
+        'disable_nacl%': 1,
+        'enable_gpu%': 0,
+        'icu_use_data_file_flag%': 1,
+        'use_system_bzip2%': 1,
+        'use_system_libxml%': 1,
+        'use_system_sqlite%': 1,
+
+        # The Mac SDK is set for iOS builds and passed through to Mac
+        # sub-builds. This allows the Mac sub-build SDK in an iOS build to be
+        # overridden from the command line the same way it is for a Mac build.
+        'mac_sdk%': '<!(<(PYTHON) <(DEPTH)/build/mac/find_sdk.py 10.6)',
+
+        # iOS SDK and deployment target support.  The iOS 5.0 SDK is actually
+        # what is required, but the value is left blank so when it is set in
+        # the project files it will be the "current" iOS SDK.  Forcing 5.0
+        # even though it is "current" causes Xcode to spit out a warning for
+        # every single project file for not using the "current" SDK.
+        'ios_sdk%': '',
+        'ios_sdk_path%': '',
+        'ios_deployment_target%': '4.3',
+
+        'conditions': [
+          # ios_product_name is set to the name of the .app bundle as it should
+          # appear on disk.
+          ['branding=="Chrome"', {
+            'ios_product_name%': 'Chrome',
+          }, { # else: branding!="Chrome"
+            'ios_product_name%': 'Chromium',
+          }],
+          ['branding=="Chrome" and buildtype=="Official"', {
+            'ios_breakpad%': 1,
+          }, { # else: branding!="Chrome" or buildtype!="Official"
+            'ios_breakpad%': 0,
+          }],
+        ],
+      }],  # OS=="ios"
+      ['OS=="android"', {
+        # Provides an absolute path to PRODUCT_DIR (e.g. out/Release). Used
+        # to specify the output directory for Ant in the Android build.
+        'ant_build_out': '`cd <(PRODUCT_DIR) && pwd -P`',
+
+        # Uses Android's crash report system
+        'linux_breakpad%': 0,
+
+        # Always uses openssl.
+        'use_openssl%': 1,
+
+        'proprietary_codecs%': '<(proprietary_codecs)',
+        'enable_task_manager%': 0,
+        'safe_browsing%': 0,
+        'configuration_policy%': 0,
+        'input_speech%': 0,
+        'enable_web_intents%': 0,
+        'enable_automation%': 0,
+        'java_bridge%': 1,
+        'build_ffmpegsumo%': 0,
+        'linux_use_tcmalloc%': 0,
+
+        # Disable Native Client.
+        'disable_nacl%': 1,
+
+        # Android does not support background apps.
+        'enable_background%': 0,
+
+        # Sessions are store separately in the Java side.
+        'enable_session_service%': 0,
+
+        # Set to 1 once we have a notification system for Android.
+        # http://crbug.com/115320
+        'notifications%': 0,
+
+        'p2p_apis%' : 0,
+
+        # TODO(jrg): when 'gtest_target_type'=='shared_library' and
+        # OS==android, make all gtest_targets depend on
+        # testing/android/native_test.gyp:native_test_apk.
+        'gtest_target_type%': 'shared_library',
+
+        # Uses system APIs for decoding audio and video.
+        'use_libffmpeg%': '0',
+
+        # Always use the chromium skia. The use_system_harfbuzz needs to
+        # match use_system_skia.
+        'use_system_skia%': '0',
+        'use_system_harfbuzz%': '0',
+
+        # Configure crash reporting and build options based on release type.
+        'conditions': [
+          ['buildtype=="Official"', {
+            # Only report crash dumps for Official builds.
+            'linux_breakpad%': 1,
+          }, {
+            'linux_breakpad%': 0,
+          }],
+        ],
+
+        # When building as part of the Android system, use system libraries
+        # where possible to reduce ROM size.
+        # TODO(steveblock): Investigate using the system version of sqlite.
+        'use_system_sqlite%': 0,  # '<(android_build_type)',
+        'use_system_expat%': '<(android_build_type)',
+        'use_system_icu%': '<(android_build_type)',
+        'use_system_stlport%': '<(android_build_type)',
+
+        # Copy it out one scope.
+        'android_build_type%': '<(android_build_type)',
+      }],  # OS=="android"
+      ['OS=="mac"', {
+        'variables': {
+          # Mac OS X SDK and deployment target support.  The SDK identifies
+          # the version of the system headers that will be used, and
+          # corresponds to the MAC_OS_X_VERSION_MAX_ALLOWED compile-time
+          # macro.  "Maximum allowed" refers to the operating system version
+          # whose APIs are available in the headers.  The deployment target
+          # identifies the minimum system version that the built products are
+          # expected to function on.  It corresponds to the
+          # MAC_OS_X_VERSION_MIN_REQUIRED compile-time macro.  To ensure these
+          # macros are available, #include <AvailabilityMacros.h>.  Additional
+          # documentation on these macros is available at
+          # http://developer.apple.com/mac/library/technotes/tn2002/tn2064.html#SECTION3
+          # Chrome normally builds with the Mac OS X 10.6 SDK and sets the
+          # deployment target to 10.6.  Other projects, such as O3D, may
+          # override these defaults.
+
+          # Normally, mac_sdk_min is used to find an SDK that Xcode knows
+          # about that is at least the specified version. In official builds,
+          # the SDK must match mac_sdk_min exactly. If the SDK is installed
+          # someplace that Xcode doesn't know about, set mac_sdk_path to the
+          # path to the SDK; when set to a non-empty string, SDK detection
+          # based on mac_sdk_min will be bypassed entirely.
+          'mac_sdk_min%': '10.6',
+          'mac_sdk_path%': '',
+
+          'mac_deployment_target%': '10.6',
+        },
+
+        'mac_sdk_min': '<(mac_sdk_min)',
+        'mac_sdk_path': '<(mac_sdk_path)',
+        'mac_deployment_target': '<(mac_deployment_target)',
+
+        # Enable clang on mac by default!
+        'clang%': 1,
+
+        # Compile in Breakpad support by default so that it can be
+        # tested, even if it is not enabled by default at runtime.
+        'mac_breakpad_compiled_in%': 1,
+        'conditions': [
+          # mac_product_name is set to the name of the .app bundle as it should
+          # appear on disk.  This duplicates data from
+          # chrome/app/theme/chromium/BRANDING and
+          # chrome/app/theme/google_chrome/BRANDING, but is necessary to get
+          # these names into the build system.
+          ['branding=="Chrome"', {
+            'mac_product_name%': 'Google Chrome',
+          }, { # else: branding!="Chrome"
+            'mac_product_name%': 'Chromium',
+          }],
+
+          ['branding=="Chrome" and buildtype=="Official"', {
+            'mac_sdk%': '<!(<(PYTHON) <(DEPTH)/build/mac/find_sdk.py --verify <(mac_sdk_min) --sdk_path=<(mac_sdk_path))',
+            # Enable uploading crash dumps.
+            'mac_breakpad_uploads%': 1,
+            # Enable dumping symbols at build time for use by Mac Breakpad.
+            'mac_breakpad%': 1,
+            # Enable Keystone auto-update support.
+            'mac_keystone%': 1,
+          }, { # else: branding!="Chrome" or buildtype!="Official"
+            'mac_sdk%': '', #'<!(<(PYTHON) <(DEPTH)/build/mac/find_sdk.py <(mac_sdk_min))',
+            'mac_breakpad_uploads%': 0,
+            'mac_breakpad%': 0,
+            'mac_keystone%': 0,
+          }],
+        ],
+      }],  # OS=="mac"
+
+      ['OS=="win"', {
+        'conditions': [
+          ['component=="shared_library"', {
+            'win_use_allocator_shim%': 0,
+          }],
+          ['component=="shared_library" and "<(GENERATOR)"=="ninja"', {
+            # Only enabled by default for ninja because it's buggy in VS.
+            # Not enabled for component=static_library because some targets
+            # are too large and the toolchain fails due to the size of the
+            # .obj files.
+            'incremental_chrome_dll%': 1,
+          }],
+          # Don't do incremental linking for large modules on 32-bit.
+          ['MSVS_OS_BITS==32', {
+            'msvs_large_module_debug_link_mode%': '1',  # No
+          },{
+            'msvs_large_module_debug_link_mode%': '2',  # Yes
+          }],
+          ['MSVS_VERSION=="2010e" or MSVS_VERSION=="2008e" or MSVS_VERSION=="2005e"', {
+            'msvs_express%': 1,
+            'secure_atl%': 0,
+          },{
+            'msvs_express%': 0,
+            'secure_atl%': 1,
+          }],
+        ],
+        'nacl_win64_defines': [
+          # This flag is used to minimize dependencies when building
+          # Native Client loader for 64-bit Windows.
+          'NACL_WIN64',
+        ],
+      }],
+
+      ['os_posix==1 and chromeos==0 and OS!="android"', {
+        'use_cups%': 1,
+      }, {
+        'use_cups%': 0,
+      }],
+
+      # Native Client glibc toolchain is enabled by default except on arm.
+      ['target_arch=="arm"', {
+        'disable_glibc%': 1,
+      }, {
+        'disable_glibc%': 0,
+      }],
+
+      # Disable SSE2 when building for ARM or MIPS.
+      ['target_arch=="arm" or target_arch=="mipsel"', {
+        'disable_sse2%': 1,
+      }, {
+        'disable_sse2%': '<(disable_sse2)',
+      }],
+
+      # Set the relative path from this file to the GYP file of the JPEG
+      # library used by Chromium.
+      ['use_system_libjpeg==1 or use_libjpeg_turbo==0', {
+        # Configuration for using the system libjeg is here.
+        'libjpeg_gyp_path': '../third_party/libjpeg/libjpeg.gyp',
+      }, {
+        'libjpeg_gyp_path': '../third_party/libjpeg_turbo/libjpeg.gyp',
+      }],
+
+      # Options controlling the use of GConf (the classic GNOME configuration
+      # system) and GIO, which contains GSettings (the new GNOME config system).
+      ['chromeos==1', {
+        'use_gconf%': 0,
+        'use_gio%': 0,
+      }, {
+        'use_gconf%': 1,
+        'use_gio%': 1,
+      }],
+
+      # Set up -D and -E flags passed into grit.
+      ['branding=="Chrome"', {
+        # TODO(mmoss) The .grd files look for _google_chrome, but for
+        # consistency they should look for google_chrome_build like C++.
+        'grit_defines': ['-D', '_google_chrome',
+                         '-E', 'CHROMIUM_BUILD=google_chrome'],
+      }, {
+        'grit_defines': ['-D', '_chromium',
+                         '-E', 'CHROMIUM_BUILD=chromium'],
+      }],
+      ['chromeos==1', {
+        'grit_defines': ['-D', 'chromeos', '-D', 'scale_factors=2x'],
+      }],
+      ['toolkit_views==1', {
+        'grit_defines': ['-D', 'toolkit_views'],
+      }],
+      ['use_aura==1', {
+        'grit_defines': ['-D', 'use_aura'],
+      }],
+      ['use_ash==1', {
+        'grit_defines': ['-D', 'use_ash'],
+      }],
+      ['use_nss==1', {
+        'grit_defines': ['-D', 'use_nss'],
+      }],
+      ['file_manager_extension==1', {
+        'grit_defines': ['-D', 'file_manager_extension'],
+      }],
+      ['remoting==1', {
+        'grit_defines': ['-D', 'remoting'],
+      }],
+      ['use_titlecase_in_grd_files==1', {
+        'grit_defines': ['-D', 'use_titlecase'],
+      }],
+      ['use_third_party_translations==1', {
+        'grit_defines': ['-D', 'use_third_party_translations'],
+        'locales': [
+          'ast', 'bs', 'ca@valencia', 'en-AU', 'eo', 'eu', 'gl', 'hy', 'ia',
+          'ka', 'ku', 'kw', 'ms', 'ug'
+        ],
+      }],
+      ['OS=="android"', {
+        'grit_defines': ['-D', 'android'],
+      }],
+      ['OS=="mac"', {
+        'grit_defines': ['-D', 'scale_factors=2x'],
+      }],
+      ['OS == "ios"', {
+        'grit_defines': [
+          # define for iOS specific resources.
+          '-D', 'ios',
+          # iOS uses a whitelist to filter resources.
+          '-w', '<(DEPTH)/build/ios/grit_whitelist.txt'
+        ],
+      }],
+      ['enable_extensions==1', {
+        'grit_defines': ['-D', 'enable_extensions'],
+      }],
+      ['enable_printing==1', {
+        'grit_defines': ['-D', 'enable_printing'],
+      }],
+      ['enable_themes==1', {
+        'grit_defines': ['-D', 'enable_themes'],
+      }],
+      ['use_oem_wallpaper==1', {
+        'grit_defines': ['-D', 'use_oem_wallpaper'],
+      }],
+      ['clang_use_chrome_plugins==1 and OS!="win"', {
+        'clang_chrome_plugins_flags': [
+          '<!@(<(DEPTH)/tools/clang/scripts/plugin_flags.sh)'
+        ],
+      }],
+
+      ['enable_web_intents_tag==1', {
+        'grit_defines': ['-D', 'enable_web_intents_tag'],
+      }],
+
+      ['asan==1', {
+        'clang%': 1,
+      }],
+      ['asan==1 and OS=="mac"', {
+        # See http://crbug.com/145503.
+        'component': "static_library",
+      }],
+      ['tsan==1', {
+        'clang%': 1,
+      }],
+
+      ['OS=="linux" and clang_type_profiler==1', {
+        'clang%': 1,
+        'clang_use_chrome_plugins%': 0,
+        'make_clang_dir%': 'third_party/llvm-allocated-type/Linux_x64',
+      }],
+
+      # On valgrind bots, override the optimizer settings so we don't inline too
+      # much and make the stacks harder to figure out.
+      #
+      # TODO(rnk): Kill off variables that no one else uses and just implement
+      # them under a build_for_tool== condition.
+      ['build_for_tool=="memcheck" or build_for_tool=="tsan"', {
+        # gcc flags
+        'mac_debug_optimization': '1',
+        'mac_release_optimization': '1',
+        'release_optimize': '1',
+        'no_gc_sections': 1,
+        'debug_extra_cflags': '-g -fno-inline -fno-omit-frame-pointer '
+                              '-fno-builtin -fno-optimize-sibling-calls',
+        'release_extra_cflags': '-g -fno-inline -fno-omit-frame-pointer '
+                                '-fno-builtin -fno-optimize-sibling-calls',
+
+        # MSVS flags for TSan on Pin and Windows.
+        'win_debug_RuntimeChecks': '0',
+        'win_debug_disable_iterator_debugging': '1',
+        'win_debug_Optimization': '1',
+        'win_debug_InlineFunctionExpansion': '0',
+        'win_release_InlineFunctionExpansion': '0',
+        'win_release_OmitFramePointers': '0',
+
+        'linux_use_tcmalloc': 1,
+        'release_valgrind_build': 1,
+        'werror': '',
+        'component': 'static_library',
+        'use_system_zlib': 0,
+      }],
+
+      # Build tweaks for DrMemory.
+      # TODO(rnk): Combine with tsan config to share the builder.
+      # http://crbug.com/108155
+      ['build_for_tool=="drmemory"', {
+        # These runtime checks force initialization of stack vars which blocks
+        # DrMemory's uninit detection.
+        'win_debug_RuntimeChecks': '0',
+        # Iterator debugging is slow.
+        'win_debug_disable_iterator_debugging': '1',
+        # Try to disable optimizations that mess up stacks in a release build.
+        'win_release_InlineFunctionExpansion': '0',
+        'win_release_OmitFramePointers': '0',
+        # Ditto for debug, to support bumping win_debug_Optimization.
+        'win_debug_InlineFunctionExpansion': 0,
+        'win_debug_OmitFramePointers': 0,
+        # Keep the code under #ifndef NVALGRIND.
+        'release_valgrind_build': 1,
+      }],
+    ],
+
+    # List of default apps to install in new profiles.  The first list contains
+    # the source files as found in svn.  The second list, used only for linux,
+    # contains the destination location for each of the files.  When a crx
+    # is added or removed from the list, the chrome/browser/resources/
+    # default_apps/external_extensions.json file must also be updated.
+    'default_apps_list': [
+      'browser/resources/default_apps/external_extensions.json',
+      'browser/resources/default_apps/gmail.crx',
+      'browser/resources/default_apps/search.crx',
+      'browser/resources/default_apps/youtube.crx',
+      'browser/resources/default_apps/drive.crx',
+      'browser/resources/default_apps/docs.crx',
+    ],
+    'default_apps_list_linux_dest': [
+      '<(PRODUCT_DIR)/default_apps/external_extensions.json',
+      '<(PRODUCT_DIR)/default_apps/gmail.crx',
+      '<(PRODUCT_DIR)/default_apps/search.crx',
+      '<(PRODUCT_DIR)/default_apps/youtube.crx',
+      '<(PRODUCT_DIR)/default_apps/drive.crx',
+      '<(PRODUCT_DIR)/default_apps/docs.crx',
+    ],
+  },
+  'target_defaults': {
+    'variables': {
+      # The condition that operates on chromium_code is in a target_conditions
+      # section, and will not have access to the default fallback value of
+      # chromium_code at the top of this file, or to the chromium_code
+      # variable placed at the root variables scope of .gyp files, because
+      # those variables are not set at target scope.  As a workaround,
+      # if chromium_code is not set at target scope, define it in target scope
+      # to contain whatever value it has during early variable expansion.
+      # That's enough to make it available during target conditional
+      # processing.
+      'chromium_code%': '<(chromium_code)',
+
+      # See http://msdn.microsoft.com/en-us/library/aa652360(VS.71).aspx
+      'win_release_Optimization%': '2', # 2 = /Os
+      'win_debug_Optimization%': '0',   # 0 = /Od
+
+      # See http://msdn.microsoft.com/en-us/library/2kxx5t2c(v=vs.80).aspx
+      # Tri-state: blank is default, 1 on, 0 off
+      'win_release_OmitFramePointers%': '0',
+      # Tri-state: blank is default, 1 on, 0 off
+      'win_debug_OmitFramePointers%': '',
+
+      # See http://msdn.microsoft.com/en-us/library/8wtf2dfz(VS.71).aspx
+      'win_debug_RuntimeChecks%': '3',    # 3 = all checks enabled, 0 = off
+
+      # See http://msdn.microsoft.com/en-us/library/47238hez(VS.71).aspx
+      'win_debug_InlineFunctionExpansion%': '',    # empty = default, 0 = off,
+      'win_release_InlineFunctionExpansion%': '2', # 1 = only __inline, 2 = max
+
+      # VS inserts quite a lot of extra checks to algorithms like
+      # std::partial_sort in Debug build which make them O(N^2)
+      # instead of O(N*logN). This is particularly slow under memory
+      # tools like ThreadSanitizer so we want it to be disablable.
+      # See http://msdn.microsoft.com/en-us/library/aa985982(v=VS.80).aspx
+      'win_debug_disable_iterator_debugging%': '0',
+
+      'release_extra_cflags%': '',
+      'debug_extra_cflags%': '',
+
+      'release_valgrind_build%': '<(release_valgrind_build)',
+
+      # the non-qualified versions are widely assumed to be *nix-only
+      'win_release_extra_cflags%': '',
+      'win_debug_extra_cflags%': '',
+
+      # TODO(thakis): Make this a blacklist instead, http://crbug.com/101600
+      'enable_wexit_time_destructors%': '<(enable_wexit_time_destructors)',
+
+      # Only used by Windows build for now.  Can be used to build into a
+      # differet output directory, e.g., a build_dir_prefix of VS2010_ would
+      # output files in src/build/VS2010_{Debug,Release}.
+      'build_dir_prefix%': '',
+
+      # Targets are by default not nacl untrusted code.
+      'nacl_untrusted_build%': 0,
+
+      'conditions': [
+        ['OS=="win" and component=="shared_library"', {
+          # See http://msdn.microsoft.com/en-us/library/aa652367.aspx
+          'win_release_RuntimeLibrary%': '2', # 2 = /MD (nondebug DLL)
+          'win_debug_RuntimeLibrary%': '3',   # 3 = /MDd (debug DLL)
+        }, {
+          # See http://msdn.microsoft.com/en-us/library/aa652367.aspx
+          'win_release_RuntimeLibrary%': '0', # 0 = /MT (nondebug static)
+          'win_debug_RuntimeLibrary%': '1',   # 1 = /MTd (debug static)
+        }],
+        ['OS=="ios"', {
+          # See http://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Optimize-Options.html
+          'mac_release_optimization%': 's', # Use -Os unless overridden
+          'mac_debug_optimization%': '0',   # Use -O0 unless overridden
+        }, {
+          # See http://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Optimize-Options.html
+          'mac_release_optimization%': '3', # Use -O3 unless overridden
+          'mac_debug_optimization%': '0',   # Use -O0 unless overridden
+        }],
+      ],
+    },
+    'conditions': [
+      ['OS=="linux" and linux_use_tcmalloc==1 and clang_type_profiler==1', {
+        'cflags_cc!': ['-fno-rtti'],
+        'cflags_cc+': [
+          '-frtti',
+          '-gline-tables-only',
+          '-fintercept-allocation-functions',
+        ],
+        'defines': ['TYPE_PROFILING'],
+        'dependencies': [
+          '<(DEPTH)/base/allocator/allocator.gyp:type_profiler',
+        ],
+      }],
+      ['OS=="win" and "<(msbuild_toolset)"!=""', {
+        'msbuild_toolset': '<(msbuild_toolset)',
+      }],
+      ['branding=="Chrome"', {
+        'defines': ['GOOGLE_CHROME_BUILD'],
+      }, {  # else: branding!="Chrome"
+        'defines': ['CHROMIUM_BUILD'],
+      }],
+      ['OS=="mac" and component=="shared_library"', {
+        'xcode_settings': {
+          'DYLIB_INSTALL_NAME_BASE': '@rpath',
+          'LD_RUNPATH_SEARCH_PATHS': [
+            # For unbundled binaries.
+            '@loader_path/.',
+            # For bundled binaries, to get back from Binary.app/Contents/MacOS.
+            '@loader_path/../../..',
+          ],
+        },
+      }],
+      ['branding=="Chrome" and (OS=="win" or OS=="mac")', {
+        'defines': ['ENABLE_RLZ'],
+      }],
+      ['component=="shared_library"', {
+        'defines': ['COMPONENT_BUILD'],
+      }],
+      ['toolkit_views==1', {
+        'defines': ['TOOLKIT_VIEWS=1'],
+      }],
+      ['ui_compositor_image_transport==1', {
+        'defines': ['UI_COMPOSITOR_IMAGE_TRANSPORT'],
+      }],
+      ['use_aura==1', {
+        'defines': ['USE_AURA=1'],
+      }],
+      ['use_ash==1', {
+        'defines': ['USE_ASH=1'],
+      }],
+      ['use_libjpeg_turbo==1', {
+        'defines': ['USE_LIBJPEG_TURBO=1'],
+      }],
+      ['use_nss==1', {
+        'defines': ['USE_NSS=1'],
+      }],
+      ['enable_one_click_signin==1', {
+        'defines': ['ENABLE_ONE_CLICK_SIGNIN'],
+      }],
+      ['toolkit_uses_gtk==1 and toolkit_views==0', {
+        # TODO(erg): We are progressively sealing up use of deprecated features
+        # in gtk in preparation for an eventual porting to gtk3.
+        'defines': ['GTK_DISABLE_SINGLE_INCLUDES=1'],
+      }],
+      ['chromeos==1', {
+        'defines': ['OS_CHROMEOS=1'],
+      }],
+      ['use_xi2_mt!=0', {
+        'defines': ['USE_XI2_MT=<(use_xi2_mt)'],
+      }],
+      ['file_manager_extension==1', {
+        'defines': ['FILE_MANAGER_EXTENSION=1'],
+      }],
+      ['profiling==1', {
+        'defines': ['ENABLE_PROFILING=1'],
+      }],
+      ['OS=="linux" and glibcxx_debug==1', {
+        'defines': ['_GLIBCXX_DEBUG=1',],
+        'cflags_cc!': ['-fno-rtti'],
+        'cflags_cc+': ['-frtti', '-g'],
+      }],
+      ['OS=="linux"', {
+        # we need lrint(), which is ISOC99, and Xcode
+	# already forces -std=c99 for mac below
+        'defines': ['_ISOC99_SOURCE=1'],
+      }],
+      ['remoting==1', {
+        'defines': ['ENABLE_REMOTING=1'],
+      }],
+      ['enable_webrtc==1', {
+        'defines': ['ENABLE_WEBRTC=1'],
+      }],
+      ['proprietary_codecs==1', {
+        'defines': ['USE_PROPRIETARY_CODECS'],
+      }],
+      ['enable_pepper_threading==1', {
+        'defines': ['ENABLE_PEPPER_THREADING'],
+      }],
+      ['enable_viewport==1', {
+        'defines': ['ENABLE_VIEWPORT'],
+      }],
+      ['configuration_policy==1', {
+        'defines': ['ENABLE_CONFIGURATION_POLICY'],
+      }],
+      ['input_speech==1', {
+        'defines': ['ENABLE_INPUT_SPEECH'],
+      }],
+      ['notifications==1', {
+        'defines': ['ENABLE_NOTIFICATIONS'],
+      }],
+      ['enable_hidpi==1', {
+        'defines': ['ENABLE_HIDPI=1'],
+      }],
+      ['fastbuild!=0', {
+
+        'conditions': [
+          # For Windows and Mac, we don't genererate debug information.
+          ['OS=="win" or OS=="mac"', {
+            'msvs_settings': {
+              'VCLinkerTool': {
+                'GenerateDebugInformation': 'false',
+              },
+              'VCCLCompilerTool': {
+                'DebugInformationFormat': '0',
+              }
+            },
+            'xcode_settings': {
+              'GCC_GENERATE_DEBUGGING_SYMBOLS': 'NO',
+            },
+          }, { # else: OS != "win", generate less debug information.
+            'variables': {
+              'debug_extra_cflags': '-g1',
+            },
+          }],
+          # Clang creates chubby debug information, which makes linking very
+          # slow. For now, don't create debug information with clang.  See
+          # http://crbug.com/70000
+          ['(OS=="linux" or OS=="android") and clang==1', {
+            'variables': {
+              'debug_extra_cflags': '-g0',
+            },
+          }],
+        ],  # conditions for fastbuild.
+      }],  # fastbuild!=0
+      ['dcheck_always_on!=0', {
+        'defines': ['DCHECK_ALWAYS_ON=1'],
+      }],  # dcheck_always_on!=0
+      ['selinux==1', {
+        'defines': ['CHROMIUM_SELINUX=1'],
+      }],
+      ['win_use_allocator_shim==0', {
+        'conditions': [
+          ['OS=="win"', {
+            'defines': ['NO_TCMALLOC'],
+          }],
+        ],
+      }],
+      ['enable_gpu==1', {
+        'defines': [
+          'ENABLE_GPU=1',
+        ],
+      }],
+      ['use_openssl==1', {
+        'defines': [
+          'USE_OPENSSL=1',
+        ],
+      }],
+      ['enable_eglimage==1', {
+        'defines': [
+          'ENABLE_EGLIMAGE=1',
+        ],
+      }],
+      ['use_skia==1', {
+        'defines': [
+          'USE_SKIA=1',
+        ],
+      }],
+      ['coverage!=0', {
+        'conditions': [
+          ['OS=="mac" or OS=="ios"', {
+            'xcode_settings': {
+              'GCC_INSTRUMENT_PROGRAM_FLOW_ARCS': 'YES',  # -fprofile-arcs
+              'GCC_GENERATE_TEST_COVERAGE_FILES': 'YES',  # -ftest-coverage
+            },
+          }],
+          ['OS=="mac"', {
+            # Add -lgcov for types executable, shared_library, and
+            # loadable_module; not for static_library.
+            # This is a delayed conditional.
+            'target_conditions': [
+              ['_type!="static_library"', {
+                'xcode_settings': { 'OTHER_LDFLAGS': [ '-lgcov' ] },
+              }],
+            ],
+          }],
+          ['OS=="linux" or OS=="android"', {
+            'cflags': [ '-ftest-coverage',
+                        '-fprofile-arcs' ],
+            'link_settings': { 'libraries': [ '-lgcov' ] },
+          }],
+          # Finally, for Windows, we simply turn on profiling.
+          ['OS=="win"', {
+            'msvs_settings': {
+              'VCLinkerTool': {
+                'Profile': 'true',
+              },
+              'VCCLCompilerTool': {
+                # /Z7, not /Zi, so coverage is happyb
+                'DebugInformationFormat': '1',
+                'AdditionalOptions': ['/Yd'],
+              }
+            }
+         }],  # OS==win
+        ],  # conditions for coverage
+      }],  # coverage!=0
+      ['OS=="win"', {
+        'defines': [
+          '__STD_C',
+          '_CRT_SECURE_NO_DEPRECATE',
+          '_SCL_SECURE_NO_DEPRECATE',
+        ],
+        'include_dirs': [
+          '<(DEPTH)/third_party/wtl/include',
+        ],
+        'conditions': [
+          ['win_z7!=0', {
+            'msvs_settings': {
+              # Generates debug info when win_z7=1
+              # even if fastbuild=1 (that makes GenerateDebugInformation false).
+              'VCLinkerTool': {
+                'GenerateDebugInformation': 'true',
+              },
+              'VCCLCompilerTool': {
+                'DebugInformationFormat': '1',
+              }
+            }
+          }],
+        ],  # win_z7!=0
+      }],  # OS==win
+      ['enable_task_manager==1', {
+        'defines': [
+          'ENABLE_TASK_MANAGER=1',
+        ],
+      }],
+      ['enable_web_intents==1', {
+        'defines': [
+          'ENABLE_WEB_INTENTS=1',
+        ],
+      }],
+      ['enable_extensions==1', {
+        'defines': [
+          'ENABLE_EXTENSIONS=1',
+        ],
+      }],
+      ['OS=="win" and branding=="Chrome"', {
+        'defines': ['ENABLE_SWIFTSHADER'],
+      }],
+      ['enable_dart==1', {
+        'defines': ['WEBKIT_USING_DART=1'],
+      }],
+      ['enable_plugin_installation==1', {
+        'defines': ['ENABLE_PLUGIN_INSTALLATION=1'],
+      }],
+      ['enable_protector_service==1', {
+        'defines': ['ENABLE_PROTECTOR_SERVICE=1'],
+      }],
+      ['enable_session_service==1', {
+        'defines': ['ENABLE_SESSION_SERVICE=1'],
+      }],
+      ['enable_themes==1', {
+        'defines': ['ENABLE_THEMES=1'],
+      }],
+      ['enable_background==1', {
+        'defines': ['ENABLE_BACKGROUND=1'],
+      }],
+      ['enable_automation==1', {
+        'defines': ['ENABLE_AUTOMATION=1'],
+      }],
+      ['enable_printing==1', {
+        'defines': ['ENABLE_PRINTING=1'],
+      }],
+      ['enable_captive_portal_detection==1', {
+        'defines': ['ENABLE_CAPTIVE_PORTAL_DETECTION=1'],
+      }],
+      ['disable_ftp_support==1', {
+        'defines': ['DISABLE_FTP_SUPPORT=1'],
+      }],
+    ],  # conditions for 'target_defaults'
+    'target_conditions': [
+      ['enable_wexit_time_destructors==1', {
+        'conditions': [
+          [ 'clang==1', {
+            'cflags': [
+              '-Wexit-time-destructors',
+            ],
+            'xcode_settings': {
+              'WARNING_CFLAGS': [
+                '-Wexit-time-destructors',
+              ],
+            },
+          }],
+        ],
+      }],
+      ['chromium_code==0', {
+        'conditions': [
+          [ 'os_posix==1 and OS!="mac" and OS!="ios"', {
+            # We don't want to get warnings from third-party code,
+            # so remove any existing warning-enabling flags like -Wall.
+            'cflags!': [
+              '-Wall',
+              '-Wextra',
+            ],
+            'cflags_cc': [
+              # Don't warn about hash_map in third-party code.
+              '-Wno-deprecated',
+            ],
+            'cflags': [
+              # Don't warn about printf format problems.
+              # This is off by default in gcc but on in Ubuntu's gcc(!).
+              '-Wno-format',
+            ],
+            'cflags_cc!': [
+              # TODO(fischman): remove this.
+              # http://code.google.com/p/chromium/issues/detail?id=90453
+              '-Wsign-compare',
+            ]
+          }],
+          # TODO: Fix all warnings on chromeos too.
+          [ 'os_posix==1 and OS!="mac" and OS!="ios" and (clang!=1 or chromeos==1)', {
+            'cflags!': [
+              '-Werror',
+            ],
+          }],
+          [ 'os_posix==1 and os_bsd!=1 and OS!="mac" and OS!="android"', {
+            'cflags': [
+              # Don't warn about ignoring the return value from e.g. close().
+              # This is off by default in some gccs but on by default in others.
+              # BSD systems do not support this option, since they are usually
+              # using gcc 4.2.1, which does not have this flag yet.
+              '-Wno-unused-result',
+            ],
+          }],
+          [ 'OS=="win"', {
+            'defines': [
+              '_CRT_SECURE_NO_DEPRECATE',
+              '_CRT_NONSTDC_NO_WARNINGS',
+              '_CRT_NONSTDC_NO_DEPRECATE',
+              '_SCL_SECURE_NO_DEPRECATE',
+            ],
+            'msvs_disabled_warnings': [4800],
+            'msvs_settings': {
+              'VCCLCompilerTool': {
+                'WarningLevel': '3',
+                'WarnAsError': '<(win_third_party_warn_as_error)',
+                'Detect64BitPortabilityProblems': 'false',
+              },
+            },
+            'conditions': [
+              ['buildtype=="Official"', {
+                'msvs_settings': {
+                  'VCCLCompilerTool': { 'WarnAsError': 'false' },
+                }
+              }],
+            ],
+          }],
+          # TODO(darin): Unfortunately, some third_party code depends on base/
+          [ 'OS=="win" and component=="shared_library"', {
+            'msvs_disabled_warnings': [
+              4251,  # class 'std::xx' needs to have dll-interface.
+            ],
+          }],
+          [ 'OS=="mac" or OS=="ios"', {
+            'xcode_settings': {
+              'WARNING_CFLAGS!': ['-Wall', '-Wextra'],
+            },
+            'conditions': [
+              ['buildtype=="Official"', {
+                'xcode_settings': {
+                  'GCC_TREAT_WARNINGS_AS_ERRORS': 'NO',    # -Werror
+                },
+              }],
+            ],
+          }],
+          [ 'OS=="ios"', {
+            'xcode_settings': {
+              # TODO(ios): Fix remaining warnings in third-party code, then
+              # remove this; the Mac cleanup didn't get everything that's
+              # flagged in an iOS build.
+              'GCC_TREAT_WARNINGS_AS_ERRORS': 'NO',
+              'RUN_CLANG_STATIC_ANALYZER': 'NO',
+            },
+          }],
+        ],
+      }, {
+        'includes': [
+           # Rules for excluding e.g. foo_win.cc from the build on non-Windows.
+          'filename_rules.gypi',
+        ],
+        # In Chromium code, we define __STDC_FORMAT_MACROS in order to get the
+        # C99 macros on Mac and Linux.
+        'defines': [
+          '__STDC_FORMAT_MACROS',
+        ],
+        'conditions': [
+          ['OS=="win"', {
+            # turn on warnings for signed/unsigned mismatch on chromium code.
+            'msvs_settings': {
+              'VCCLCompilerTool': {
+                'AdditionalOptions': ['/we4389'],
+              },
+            },
+          }],
+          ['OS=="win" and component=="shared_library"', {
+            'msvs_disabled_warnings': [
+              4251,  # class 'std::xx' needs to have dll-interface.
+            ],
+          }],
+        ],
+      }],
+    ],  # target_conditions for 'target_defaults'
+    'default_configuration': 'Debug',
+    'configurations': {
+      # VCLinkerTool LinkIncremental values below:
+      #   0 == default
+      #   1 == /INCREMENTAL:NO
+      #   2 == /INCREMENTAL
+      # Debug links incremental, Release does not.
+      #
+      # Abstract base configurations to cover common attributes.
+      #
+      'Common_Base': {
+        'abstract': 1,
+        'msvs_configuration_attributes': {
+          'OutputDirectory': '<(DEPTH)\\build\\<(build_dir_prefix)$(ConfigurationName)',
+          'IntermediateDirectory': '$(OutDir)\\obj\\$(ProjectName)',
+          'CharacterSet': '1',
+        },
+      },
+      'x86_Base': {
+        'abstract': 1,
+        'msvs_settings': {
+          'VCLinkerTool': {
+            'TargetMachine': '1',
+          },
+        },
+        'msvs_configuration_platform': 'Win32',
+      },
+      'x64_Base': {
+        'abstract': 1,
+        'msvs_configuration_platform': 'x64',
+        'msvs_settings': {
+          'VCLinkerTool': {
+            'TargetMachine': '17', # x86 - 64
+            'AdditionalLibraryDirectories!':
+              ['<(windows_sdk_path)/Lib/win8/um/x86'],
+            'AdditionalLibraryDirectories':
+              ['<(windows_sdk_path)/Lib/win8/um/x64'],
+          },
+          'VCLibrarianTool': {
+            'AdditionalLibraryDirectories!':
+              ['<(windows_sdk_path)/Lib/win8/um/x86'],
+            'AdditionalLibraryDirectories':
+              ['<(windows_sdk_path)/Lib/win8/um/x64'],
+          },
+        },
+        'defines': [
+          # Not sure if tcmalloc works on 64-bit Windows.
+          'NO_TCMALLOC',
+        ],
+      },
+      'Debug_Base': {
+        'abstract': 1,
+        'defines': [
+          'DYNAMIC_ANNOTATIONS_ENABLED=1',
+          'WTF_USE_DYNAMIC_ANNOTATIONS=1',
+        ],
+        'xcode_settings': {
+          'COPY_PHASE_STRIP': 'NO',
+          'GCC_OPTIMIZATION_LEVEL': '<(mac_debug_optimization)',
+          'OTHER_CFLAGS': [
+            '<@(debug_extra_cflags)',
+          ],
+        },
+        'msvs_settings': {
+          'VCCLCompilerTool': {
+            'Optimization': '<(win_debug_Optimization)',
+            'PreprocessorDefinitions': ['_DEBUG'],
+            'BasicRuntimeChecks': '<(win_debug_RuntimeChecks)',
+            'RuntimeLibrary': '<(win_debug_RuntimeLibrary)',
+            'conditions': [
+              # According to MSVS, InlineFunctionExpansion=0 means
+              # "default inlining", not "/Ob0".
+              # Thus, we have to handle InlineFunctionExpansion==0 separately.
+              ['win_debug_InlineFunctionExpansion==0', {
+                'AdditionalOptions': ['/Ob0'],
+              }],
+              ['win_debug_InlineFunctionExpansion!=""', {
+                'InlineFunctionExpansion':
+                  '<(win_debug_InlineFunctionExpansion)',
+              }],
+              ['win_debug_disable_iterator_debugging==1', {
+                'PreprocessorDefinitions': ['_HAS_ITERATOR_DEBUGGING=0'],
+              }],
+
+              # if win_debug_OmitFramePointers is blank, leave as default
+              ['win_debug_OmitFramePointers==1', {
+                'OmitFramePointers': 'true',
+              }],
+              ['win_debug_OmitFramePointers==0', {
+                'OmitFramePointers': 'false',
+                # The above is not sufficient (http://crbug.com/106711): it
+                # simply eliminates an explicit "/Oy", but both /O2 and /Ox
+                # perform FPO regardless, so we must explicitly disable.
+                # We still want the false setting above to avoid having
+                # "/Oy /Oy-" and warnings about overriding.
+                'AdditionalOptions': ['/Oy-'],
+              }],
+            ],
+            'AdditionalOptions': [ '<@(win_debug_extra_cflags)', ],
+          },
+          'VCLinkerTool': {
+            'LinkIncremental': '<(msvs_debug_link_incremental)',
+            # ASLR makes debugging with windbg difficult because Chrome.exe and
+            # Chrome.dll share the same base name. As result, windbg will
+            # name the Chrome.dll module like chrome_<base address>, where
+            # <base address> typically changes with each launch. This in turn
+            # means that breakpoints in Chrome.dll don't stick from one launch
+            # to the next. For this reason, we turn ASLR off in debug builds.
+            # Note that this is a three-way bool, where 0 means to pick up
+            # the default setting, 1 is off and 2 is on.
+            'RandomizedBaseAddress': 1,
+          },
+          'VCResourceCompilerTool': {
+            'PreprocessorDefinitions': ['_DEBUG'],
+          },
+        },
+        'conditions': [
+          ['OS=="linux" or OS=="android"', {
+            'target_conditions': [
+              ['_toolset=="target"', {
+                'cflags': [
+                  '<@(debug_extra_cflags)',
+                ],
+              }],
+            ],
+          }],
+          # Disabled on iOS because it was causing a crash on startup.
+          # TODO(michelea): investigate, create a reduced test and possibly
+          # submit a radar.
+          ['release_valgrind_build==0 and OS!="ios"', {
+            'xcode_settings': {
+              'OTHER_CFLAGS': [
+                '-fstack-protector-all',  # Implies -fstack-protector
+              ],
+            },
+          }],
+        ],
+      },
+      'Release_Base': {
+        'abstract': 1,
+        'defines': [
+          'NDEBUG',
+        ],
+        'xcode_settings': {
+          'DEAD_CODE_STRIPPING': 'YES',  # -Wl,-dead_strip
+          'GCC_OPTIMIZATION_LEVEL': '<(mac_release_optimization)',
+          'OTHER_CFLAGS': [ '<@(release_extra_cflags)', ],
+        },
+        'msvs_settings': {
+          'VCCLCompilerTool': {
+            'RuntimeLibrary': '<(win_release_RuntimeLibrary)',
+            'conditions': [
+              # In official builds, each target will self-select
+              # an optimization level.
+              ['buildtype!="Official"', {
+                  'Optimization': '<(win_release_Optimization)',
+                },
+              ],
+              # According to MSVS, InlineFunctionExpansion=0 means
+              # "default inlining", not "/Ob0".
+              # Thus, we have to handle InlineFunctionExpansion==0 separately.
+              ['win_release_InlineFunctionExpansion==0', {
+                'AdditionalOptions': ['/Ob0'],
+              }],
+              ['win_release_InlineFunctionExpansion!=""', {
+                'InlineFunctionExpansion':
+                  '<(win_release_InlineFunctionExpansion)',
+              }],
+
+              # if win_release_OmitFramePointers is blank, leave as default
+              ['win_release_OmitFramePointers==1', {
+                'OmitFramePointers': 'true',
+              }],
+              ['win_release_OmitFramePointers==0', {
+                'OmitFramePointers': 'false',
+                # The above is not sufficient (http://crbug.com/106711): it
+                # simply eliminates an explicit "/Oy", but both /O2 and /Ox
+                # perform FPO regardless, so we must explicitly disable.
+                # We still want the false setting above to avoid having
+                # "/Oy /Oy-" and warnings about overriding.
+                'AdditionalOptions': ['/Oy-'],
+              }],
+            ],
+            'AdditionalOptions': [ '<@(win_release_extra_cflags)', ],
+          },
+          'VCLinkerTool': {
+            # LinkIncremental is a tri-state boolean, where 0 means default
+            # (i.e., inherit from parent solution), 1 means false, and
+            # 2 means true.
+            'LinkIncremental': '1',
+            # This corresponds to the /PROFILE flag which ensures the PDB
+            # file contains FIXUP information (growing the PDB file by about
+            # 5%) but does not otherwise alter the output binary. This
+            # information is used by the Syzygy optimization tool when
+            # decomposing the release image.
+            'Profile': 'true',
+          },
+        },
+        'conditions': [
+          ['msvs_use_common_release', {
+            'includes': ['release.gypi'],
+          }],
+          ['release_valgrind_build==0', {
+            'defines': [
+              'NVALGRIND',
+              'DYNAMIC_ANNOTATIONS_ENABLED=0',
+            ],
+          }, {
+            'defines': [
+              'DYNAMIC_ANNOTATIONS_ENABLED=1',
+              'WTF_USE_DYNAMIC_ANNOTATIONS=1',
+            ],
+          }],
+          ['win_use_allocator_shim==0', {
+            'defines': ['NO_TCMALLOC'],
+          }],
+          ['OS=="linux"', {
+            'target_conditions': [
+              ['_toolset=="target"', {
+                'cflags': [
+                  '<@(release_extra_cflags)',
+                ],
+              }],
+            ],
+          }],
+        ],
+      },
+      #
+      # Concrete configurations
+      #
+      'Debug': {
+        'inherit_from': ['Common_Base', 'x86_Base', 'Debug_Base'],
+      },
+      'Release': {
+        'inherit_from': ['Common_Base', 'x86_Base', 'Release_Base'],
+      },
+      'conditions': [
+        [ 'OS=="win"', {
+          # TODO(bradnelson): add a gyp mechanism to make this more graceful.
+          'Debug_x64': {
+            'inherit_from': ['Common_Base', 'x64_Base', 'Debug_Base'],
+          },
+          'Release_x64': {
+            'inherit_from': ['Common_Base', 'x64_Base', 'Release_Base'],
+          },
+        }],
+      ],
+    },
+  },
+  'conditions': [
+    ['os_posix==1 and OS!="mac" and OS!="ios"', {
+      'target_defaults': {
+        # Enable -Werror by default, but put it in a variable so it can
+        # be disabled in ~/.gyp/include.gypi on the valgrind builders.
+        'variables': {
+          'werror%': '-Werror',
+          'libraries_for_target%': '',
+        },
+        'defines': [
+          '_FILE_OFFSET_BITS=64',
+        ],
+        'cflags': [
+          '<(werror)',  # See note above about the werror variable.
+          '-pthread',
+          '-fno-exceptions',
+          '-fno-strict-aliasing',  # See http://crbug.com/32204
+          '-Wall',
+          # TODO(evan): turn this back on once all the builds work.
+          # '-Wextra',
+          # Don't warn about unused function params.  We use those everywhere.
+          '-Wno-unused-parameter',
+          # Don't warn about the "struct foo f = {0};" initialization pattern.
+          '-Wno-missing-field-initializers',
+          # Don't export any symbols (for example, to plugins we dlopen()).
+          # Note: this is *required* to make some plugins work.
+          '-fvisibility=hidden',
+          '-pipe',
+        ],
+        'cflags_cc': [
+          '-fno-rtti',
+          '-fno-threadsafe-statics',
+          # Make inline functions have hidden visiblity by default.
+          # Surprisingly, not covered by -fvisibility=hidden.
+          '-fvisibility-inlines-hidden',
+          # GCC turns on -Wsign-compare for C++ under -Wall, but clang doesn't,
+          # so we specify it explicitly.
+          # TODO(fischman): remove this if http://llvm.org/PR10448 obsoletes it.
+          # http://code.google.com/p/chromium/issues/detail?id=90453
+          '-Wsign-compare',
+        ],
+        'ldflags': [
+          '-pthread', '-Wl,-z,noexecstack',
+        ],
+        'libraries' : [
+          '<(libraries_for_target)',
+        ],
+        'configurations': {
+          'Debug_Base': {
+            'variables': {
+              'debug_optimize%': '0',
+            },
+            'defines': [
+              '_DEBUG',
+            ],
+            'cflags': [
+              '-O>(debug_optimize)',
+              '-g',
+            ],
+            'conditions' : [
+              ['OS=="android" and android_full_debug==0', {
+                # Some configurations are copied from Release_Base to reduce
+                # the binary size.
+                'variables': {
+                  'debug_optimize%': 's',
+                },
+                'cflags': [
+                  '-fomit-frame-pointer',
+                  '-fdata-sections',
+                  '-ffunction-sections',
+                ],
+                'ldflags': [
+                  '-Wl,-O1',
+                  '-Wl,--as-needed',
+                  '-Wl,--gc-sections',
+                ],
+              }],
+            ],
+          },
+          'Release_Base': {
+            'variables': {
+              'release_optimize%': '2',
+              # Binaries become big and gold is unable to perform GC
+              # and remove unused sections for some of test targets
+              # on 32 bit platform.
+              # (This is currently observed only in chromeos valgrind bots)
+              # The following flag is to disable --gc-sections linker
+              # option for these bots.
+              'no_gc_sections%': 0,
+
+              # TODO(bradnelson): reexamine how this is done if we change the
+              # expansion of configurations
+              'release_valgrind_build%': 0,
+            },
+            'cflags': [
+              '-O<(release_optimize)',
+              # Don't emit the GCC version ident directives, they just end up
+              # in the .comment section taking up binary size.
+              '-fno-ident',
+              # Put data and code in their own sections, so that unused symbols
+              # can be removed at link time with --gc-sections.
+              '-fdata-sections',
+              '-ffunction-sections',
+            ],
+            'ldflags': [
+              # Specifically tell the linker to perform optimizations.
+              # See http://lwn.net/Articles/192624/ .
+              '-Wl,-O1',
+              '-Wl,--as-needed',
+            ],
+            'conditions' : [
+              ['no_gc_sections==0', {
+                'ldflags': [
+                  '-Wl,--gc-sections',
+                ],
+              }],
+              ['OS=="android"', {
+                'variables': {
+                  'release_optimize%': 's',
+                },
+                'cflags': [
+                  '-fomit-frame-pointer',
+                ],
+              }],
+              ['clang==1', {
+                'cflags!': [
+                  '-fno-ident',
+                ],
+              }],
+              ['profiling==1', {
+                'cflags': [
+                  '-fno-omit-frame-pointer',
+                  '-g',
+                ],
+              }],
+            ],
+          },
+        },
+        'variants': {
+          'coverage': {
+            'cflags': ['-fprofile-arcs', '-ftest-coverage'],
+            'ldflags': ['-fprofile-arcs'],
+          },
+          'profile': {
+            'cflags': ['-pg', '-g'],
+            'ldflags': ['-pg'],
+          },
+          'symbols': {
+            'cflags': ['-g'],
+          },
+        },
+        'conditions': [
+          ['target_arch=="ia32"', {
+            'target_conditions': [
+              ['_toolset=="target"', {
+                'asflags': [
+                  # Needed so that libs with .s files (e.g. libicudata.a)
+                  # are compatible with the general 32-bit-ness.
+                  '-32',
+                ],
+                # All floating-point computations on x87 happens in 80-bit
+                # precision.  Because the C and C++ language standards allow
+                # the compiler to keep the floating-point values in higher
+                # precision than what's specified in the source and doing so
+                # is more efficient than constantly rounding up to 64-bit or
+                # 32-bit precision as specified in the source, the compiler,
+                # especially in the optimized mode, tries very hard to keep
+                # values in x87 floating-point stack (in 80-bit precision)
+                # as long as possible. This has important side effects, that
+                # the real value used in computation may change depending on
+                # how the compiler did the optimization - that is, the value
+                # kept in 80-bit is different than the value rounded down to
+                # 64-bit or 32-bit. There are possible compiler options to
+                # make this behavior consistent (e.g. -ffloat-store would keep
+                # all floating-values in the memory, thus force them to be
+                # rounded to its original precision) but they have significant
+                # runtime performance penalty.
+                #
+                # -mfpmath=sse -msse2 makes the compiler use SSE instructions
+                # which keep floating-point values in SSE registers in its
+                # native precision (32-bit for single precision, and 64-bit
+                # for double precision values). This means the floating-point
+                # value used during computation does not change depending on
+                # how the compiler optimized the code, since the value is
+                # always kept in its specified precision.
+                'conditions': [
+                  ['branding=="Chromium" and disable_sse2==0', {
+                    'cflags': [
+                      '-march=pentium4',
+                      '-msse2',
+                      '-mfpmath=sse',
+                    ],
+                  }],
+                  # ChromeOS targets Pinetrail, which is sse3, but most of the
+                  # benefit comes from sse2 so this setting allows ChromeOS
+                  # to build on other CPUs.  In the future -march=atom would
+                  # help but requires a newer compiler.
+                  ['chromeos==1 and disable_sse2==0', {
+                    'cflags': [
+                      '-msse2',
+                    ],
+                  }],
+                  # Install packages have started cropping up with
+                  # different headers between the 32-bit and 64-bit
+                  # versions, so we have to shadow those differences off
+                  # and make sure a 32-bit-on-64-bit build picks up the
+                  # right files.
+                  # For android build, use NDK headers instead of host headers
+                  ['host_arch!="ia32" and OS!="android"', {
+                    'include_dirs+': [
+                      '/usr/include32',
+                    ],
+                  }],
+                ],
+               'target_conditions': [
+                 ['_toolset=="target" and OS!="android"', {
+                    # -mmmx allows mmintrin.h to be used for mmx intrinsics.
+                    # video playback is mmx and sse2 optimized.
+                    'cflags': [
+                      '-m32',
+                      '-mmmx',
+                    ],
+                    'ldflags': [
+                      '-m32',
+                    ],
+                    'cflags_mozilla': [
+                      '-m32',
+                      '-mmmx',
+                    ],
+                  }],
+                ],
+              }],
+            ],
+          }],
+          ['target_arch=="arm"', {
+            'target_conditions': [
+              ['_toolset=="target"', {
+                'cflags_cc': [
+                  # The codesourcery arm-2009q3 toolchain warns at that the ABI
+                  # has changed whenever it encounters a varargs function. This
+                  # silences those warnings, as they are not helpful and
+                  # clutter legitimate warnings.
+                  '-Wno-abi',
+                ],
+                'conditions': [
+                  ['arm_thumb==1', {
+                    'cflags': [
+                    '-mthumb',
+                    ]
+                  }],
+                  ['armv7==1', {
+                    'cflags': [
+                      '-march=armv7-a',
+                      '-mtune=cortex-a8',
+                      '-mfloat-abi=<(arm_float_abi)',
+                    ],
+                    'conditions': [
+                      ['arm_neon==1', {
+                        'cflags': [ '-mfpu=neon', ],
+                      }, {
+                        'cflags': [ '-mfpu=<(arm_fpu)', ],
+                      }],
+                    ],
+                  }],
+                  ['OS=="android"', {
+                    # Most of the following flags are derived from what Android
+                    # uses by default when building for arm, reference for which
+                    # can be found in the following file in the Android NDK:
+                    # toolchains/arm-linux-androideabi-4.4.3/setup.mk
+                    'cflags': [
+                      # The tree-sra optimization (scalar replacement for
+                      # aggregates enabling subsequent optimizations) leads to
+                      # invalid code generation when using the Android NDK's
+                      # compiler (r5-r7). This can be verified using
+                      # TestWebKitAPI's WTF.Checked_int8_t test.
+                      '-fno-tree-sra',
+                      '-fuse-ld=gold',
+                      '-Wno-psabi',
+                    ],
+                    # Android now supports .relro sections properly.
+                    # NOTE: While these flags enable the generation of .relro
+                    # sections, the generated libraries can still be loaded on
+                    # older Android platform versions.
+                    'ldflags': [
+                        '-Wl,-z,relro',
+                        '-Wl,-z,now',
+                        '-fuse-ld=gold',
+                    ],
+                    'conditions': [
+                      ['arm_thumb == 1', {
+                        # Android toolchain doesn't support -mimplicit-it=thumb
+                        'cflags!': [ '-Wa,-mimplicit-it=thumb', ],
+                        'cflags': [ '-mthumb-interwork', ],
+                      }],
+                      ['armv7==0', {
+                        # Flags suitable for Android emulator
+                        'cflags': [
+                          '-march=armv5te',
+                          '-mtune=xscale',
+                          '-msoft-float',
+                        ],
+                        'defines': [
+                          '__ARM_ARCH_5__',
+                          '__ARM_ARCH_5T__',
+                          '__ARM_ARCH_5E__',
+                          '__ARM_ARCH_5TE__',
+                        ],
+                      }],
+                      ['clang==1', {
+                        'cflags!': [
+                          # Clang does not support the following options.
+                          '-mthumb-interwork',
+                          '-finline-limit=64',
+                          '-fno-tree-sra',
+                          '-fuse-ld=gold',
+                          '-Wno-psabi',
+                        ],
+                      }],
+                    ],
+                  }],
+                ],
+              }],
+            ],
+          }],
+          ['linux_fpic==1', {
+            'cflags': [
+              '-fPIC',
+            ],
+            'ldflags': [
+              '-fPIC',
+            ],
+          }],
+          ['sysroot!=""', {
+            'target_conditions': [
+              ['_toolset=="target"', {
+                'cflags': [
+                  '--sysroot=<(sysroot)',
+                ],
+                'ldflags': [
+                  '--sysroot=<(sysroot)',
+                ],
+              }]]
+          }],
+          ['clang==1', {
+            'cflags': [
+              '-Wheader-hygiene',
+              # Clang spots more unused functions.
+              '-Wno-unused-function',
+              # Don't die on dtoa code that uses a char as an array index.
+              '-Wno-char-subscripts',
+              # Especially needed for gtest macros using enum values from Mac
+              # system headers.
+              # TODO(pkasting): In C++11 this is legal, so this should be
+              # removed when we change to that.  (This is also why we don't
+              # bother fixing all these cases today.)
+              '-Wno-unnamed-type-template-args',
+              # This (rightyfully) complains about 'override', which we use
+              # heavily.
+              '-Wno-c++11-extensions',
+
+              # Warns on switches on enums that cover all enum values but
+              # also contain a default: branch. Chrome is full of that.
+              '-Wno-covered-switch-default',
+
+              # TODO(thakis): Remove this.
+              '-Wno-implicit-conversion-floating-point-to-bool',
+            ],
+            'cflags!': [
+              # Clang doesn't seem to know know this flag.
+              '-mfpmath=sse',
+            ],
+          }],
+          ['clang==1 and clang_use_chrome_plugins==1', {
+            'cflags': [
+              '<@(clang_chrome_plugins_flags)',
+            ],
+          }],
+          ['clang==1 and clang_load!=""', {
+            'cflags': [
+              '-Xclang', '-load', '-Xclang', '<(clang_load)',
+            ],
+          }],
+          ['clang==1 and clang_add_plugin!=""', {
+            'cflags': [
+              '-Xclang', '-add-plugin', '-Xclang', '<(clang_add_plugin)',
+            ],
+          }],
+          ['clang==1 and "<(GENERATOR)"=="ninja"', {
+            'cflags': [
+              # See http://crbug.com/110262
+              '-fcolor-diagnostics',
+            ],
+          }],
+          ['asan==1', {
+            'target_conditions': [
+              ['_toolset=="target"', {
+                'cflags': [
+                  '-faddress-sanitizer',
+                  '-fno-omit-frame-pointer',
+                ],
+                'ldflags': [
+                  '-faddress-sanitizer',
+                ],
+                'defines': [
+                  'ADDRESS_SANITIZER',
+                ],
+              }],
+            ],
+          }],
+          ['tsan==1', {
+            'target_conditions': [
+              ['_toolset=="target"', {
+                'cflags': [
+                  '-fthread-sanitizer',
+                  '-fno-omit-frame-pointer',
+                  '-fPIE',
+                ],
+                'ldflags': [
+                  '-fthread-sanitizer',
+                ],
+                'defines': [
+                  'THREAD_SANITIZER',
+                  'DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL=1',
+                ],
+                'target_conditions': [
+                  ['_type=="executable"', {
+                    'ldflags': [
+                      '-pie',
+                    ],
+                  }],
+                ],
+              }],
+            ],
+          }],
+          ['order_profiling!=0 and (chromeos==1 or OS=="linux")', {
+            'target_conditions' : [
+              ['_toolset=="target"', {
+                'cflags': [
+                  '-finstrument-functions',
+                  # Allow mmx intrinsics to inline, so that the
+                  # compiler can expand the intrinsics.
+                  '-finstrument-functions-exclude-file-list=mmintrin.h',
+                ],
+              }],
+            ],
+          }],
+          ['linux_breakpad==1', {
+            'cflags': [ '-g' ],
+            'defines': ['USE_LINUX_BREAKPAD'],
+          }],
+          ['linux_use_heapchecker==1', {
+            'variables': {'linux_use_tcmalloc%': 1},
+            'defines': ['USE_HEAPCHECKER'],
+          }],
+          ['linux_use_tcmalloc==0', {
+            'defines': ['NO_TCMALLOC'],
+          }],
+          ['linux_keep_shadow_stacks==1', {
+            'defines': ['KEEP_SHADOW_STACKS'],
+            'cflags': [
+              '-finstrument-functions',
+              # Allow mmx intrinsics to inline, so that the compiler can expand
+              # the intrinsics.
+              '-finstrument-functions-exclude-file-list=mmintrin.h',
+            ],
+          }],
+          ['linux_use_gold_flags==1', {
+            'ldflags': [
+              # Experimentation found that using four linking threads
+              # saved ~20% of link time.
+              # https://groups.google.com/a/chromium.org/group/chromium-dev/browse_thread/thread/281527606915bb36
+              '-Wl,--threads',
+              '-Wl,--thread-count=4',
+            ],
+            'conditions': [
+              ['release_valgrind_build==0', {
+                'target_conditions': [
+                  ['_toolset=="target"', {
+                    'ldflags': [
+                      # There seems to be a conflict of --icf and -pie
+                      # in gold which can generate crashy binaries. As
+                      # a security measure, -pie takes precendence for
+                      # now.
+                      #'-Wl,--icf=safe',
+                      '-Wl,--icf=none',
+                    ],
+                  }],
+                ],
+              }],
+            ],
+          }],
+          ['linux_use_gold_binary==1', {
+            'variables': {
+              'conditions': [
+                ['inside_chromium_build==1', {
+                  # We pass the path to gold to the compiler.  gyp leaves
+                  # unspecified what the cwd is when running the compiler,
+                  # so the normal gyp path-munging fails us.  This hack
+                  # gets the right path.
+                  'gold_path': '<(PRODUCT_DIR)/../../third_party/gold',
+                }, {
+                  'gold_path': '<(PRODUCT_DIR)/../../Source/WebKit/chromium/third_party/gold',
+                }]
+              ]
+            },
+            'ldflags': [
+              # Put our gold binary in the search path for the linker.
+              '-B<(gold_path)',
+            ],
+          }],
+        ],
+      },
+    }],
+    # FreeBSD-specific options; note that most FreeBSD options are set above,
+    # with Linux.
+    ['OS=="freebsd"', {
+      'target_defaults': {
+        'ldflags': [
+          '-Wl,--no-keep-memory',
+        ],
+      },
+    }],
+    # Android-specific options; note that most are set above with Linux.
+    ['OS=="android"', {
+      'variables': {
+        # This is the id for the archived chrome symbols. Each build that
+        # archives symbols is assigned an id which is then added to GYP_DEFINES.
+        # This is written to the device log on crashes just prior to dropping a
+        # tombstone. Tools can determine the location of the archived symbols
+        # from the id.
+        'chrome_symbols_id%': '',
+        'conditions': [
+          # Use shared stlport library when system one used.
+          # Figure this out early since it needs symbols from libgcc.a, so it
+          # has to be before that in the set of libraries.
+          ['use_system_stlport==1', {
+            'android_stlport_library': 'stlport',
+          }, {
+            'android_stlport_library': 'stlport_static',
+          }],
+        ],
+
+        # Placing this variable here prevents from forking libvpx, used
+        # by remoting.  Remoting is off, so it needn't built,
+        # so forking it's deps seems like overkill.
+        # But this variable need defined to properly run gyp.
+        # A proper solution is to have an OS==android conditional
+        # in third_party/libvpx/libvpx.gyp to define it.
+        'libvpx_path': 'lib/linux/arm',
+      },
+      'target_defaults': {
+        'variables': {
+          'release_extra_cflags%': '',
+        },
+
+        'target_conditions': [
+          # Settings for building device targets using Android's toolchain.
+          # These are based on the setup.mk file from the Android NDK.
+          #
+          # The NDK Android executable link step looks as follows:
+          #  $LDFLAGS
+          #  $(TARGET_CRTBEGIN_DYNAMIC_O)  <-- crtbegin.o
+          #  $(PRIVATE_OBJECTS)            <-- The .o that we built
+          #  $(PRIVATE_STATIC_LIBRARIES)   <-- The .a that we built
+          #  $(TARGET_LIBGCC)              <-- libgcc.a
+          #  $(PRIVATE_SHARED_LIBRARIES)   <-- The .so that we built
+          #  $(PRIVATE_LDLIBS)             <-- System .so
+          #  $(TARGET_CRTEND_O)            <-- crtend.o
+          #
+          # For now the above are approximated for executables by adding
+          # crtbegin.o to the end of the ldflags and 'crtend.o' to the end
+          # of 'libraries'.
+          #
+          # The NDK Android shared library link step looks as follows:
+          #  $LDFLAGS
+          #  $(PRIVATE_OBJECTS)            <-- The .o that we built
+          #  -l,--whole-archive
+          #  $(PRIVATE_WHOLE_STATIC_LIBRARIES)
+          #  -l,--no-whole-archive
+          #  $(PRIVATE_STATIC_LIBRARIES)   <-- The .a that we built
+          #  $(TARGET_LIBGCC)              <-- libgcc.a
+          #  $(PRIVATE_SHARED_LIBRARIES)   <-- The .so that we built
+          #  $(PRIVATE_LDLIBS)             <-- System .so
+          #
+          # For now, assume that whole static libraries are not needed.
+          #
+          # For both executables and shared libraries, add the proper
+          # libgcc.a to the start of libraries which puts it in the
+          # proper spot after .o and .a files get linked in.
+          #
+          # TODO: The proper thing to do longer-tem would be proper gyp
+          # support for a custom link command line.
+          ['_toolset=="target"', {
+           'conditions': [
+           ['build_with_mozilla==0', {
+            'cflags!': [
+              '-pthread',  # Not supported by Android toolchain.
+            ],
+            'cflags': [
+              '-ffunction-sections',
+              '-funwind-tables',
+              '-g',
+              '-fstack-protector',
+              '-fno-short-enums',
+              '-finline-limit=64',
+              '-Wa,--noexecstack',
+              '<@(release_extra_cflags)',
+            ],
+            'ldflags!': [
+              '-pthread',  # Not supported by Android toolchain.
+            ],
+            'ldflags': [
+              '-nostdlib',
+              '-Wl,--no-undefined',
+              # Don't export symbols from statically linked libraries.
+              '-Wl,--exclude-libs=ALL',
+            ],
+            'libraries': [
+              '-l<(android_stlport_library)',
+              '-lc',
+              '-ldl',
+              '-lstdc++',
+              '-lm',
+            ],
+            'conditions': [
+              ['android_upstream_bringup==1', {
+                'defines': ['ANDROID_UPSTREAM_BRINGUP=1',],
+              }],
+              ['clang==1', {
+                'cflags': [
+                  # Work around incompatibilities between bionic and clang
+                  # headers.
+                  '-D__compiler_offsetof=__builtin_offsetof',
+                  '-Dnan=__builtin_nan',
+                ],
+                'conditions': [
+                  ['target_arch=="arm"', {
+                    'cflags': [
+                      '-target arm-linux-androideabi',
+                      '-mllvm -arm-enable-ehabi',
+                    ],
+                    'ldflags': [
+                      '-target arm-linux-androideabi',
+                    ],
+                  }],
+                  ['target_arch=="ia32"', {
+                    'cflags': [
+                      '-target x86-linux-androideabi',
+                    ],
+                    'ldflags': [
+                      '-target x86-linux-androideabi',
+                    ],
+                  }],
+                ],
+              }],
+              ['android_build_type==0', {
+                'defines': [
+                  # The NDK has these things, but doesn't define the constants
+                  # to say that it does. Define them here instead.
+                  'HAVE_SYS_UIO_H',
+                ],
+                'cflags': [
+                  '--sysroot=<(android_ndk_sysroot)',
+                ],
+                'ldflags': [
+                  '--sysroot=<(android_ndk_sysroot)',
+                ],
+              }],
+              ['android_build_type==1', {
+                'include_dirs': [
+                  # OpenAL headers from the Android tree.
+                  '<(android_src)/frameworks/wilhelm/include',
+                ],
+                'cflags': [
+                  # Chromium builds its own (non-third-party) code with
+                  # -Werror to make all warnings into errors. However, Android
+                  # enables warnings that Chromium doesn't, so some of these
+                  # extra warnings trip and break things.
+                  # For now, we leave these warnings enabled but prevent them
+                  # from being treated as errors.
+                  #
+                  # Things that are part of -Wextra:
+                  '-Wno-error=extra', # Enabled by -Wextra, but no specific flag
+                  '-Wno-error=ignored-qualifiers',
+                  '-Wno-error=type-limits',
+                  # Other things unrelated to -Wextra:
+                  '-Wno-error=non-virtual-dtor',
+                  '-Wno-error=sign-promo',
+                ],
+                'cflags_cc': [
+                  # Disabling c++0x-compat should be handled in WebKit, but
+                  # this currently doesn't work because gcc_version is not set
+                  # correctly when building with the Android build system.
+                  # TODO(torne): Fix this in WebKit.
+                  '-Wno-error=c++0x-compat',
+                ],
+              }],
+              ['android_build_type==1 and chromium_code==0', {
+                'cflags': [
+                  # There is a class of warning which:
+                  #  1) Android always enables and also treats as errors
+                  #  2) Chromium ignores in third party code
+                  # For now, I am leaving these warnings enabled but preventing
+                  # them from being treated as errors here.
+                  '-Wno-error=address',
+                  '-Wno-error=format-security',
+                  '-Wno-error=non-virtual-dtor',
+                  '-Wno-error=return-type',
+                  '-Wno-error=sequence-point',
+                ],
+              }],
+              ['target_arch == "arm"', {
+                'ldflags': [
+                  # Enable identical code folding to reduce size.
+                  '-Wl,--icf=safe',
+                ],
+              }],
+              # NOTE: The stlport header include paths below are specified in
+              # cflags rather than include_dirs because they need to come
+              # after include_dirs. Think of them like system headers, but
+              # don't use '-isystem' because the arm-linux-androideabi-4.4.3
+              # toolchain (circa Gingerbread) will exhibit strange errors.
+              # The include ordering here is important; change with caution.
+              ['use_system_stlport==1', {
+                'cflags': [
+                  # For libstdc++/include, which is used by stlport.
+                  '-I<(android_src)/bionic',
+                  '-I<(android_src)/external/stlport/stlport',
+                ],
+              }, { # else: use_system_stlport!=1
+                'cflags': [
+                  '-I<(android_ndk_root)/sources/cxx-stl/stlport/stlport',
+                ],
+                'conditions': [
+                  ['target_arch=="arm" and armv7==1', {
+                    'ldflags': [
+                      '-L<(android_ndk_root)/sources/cxx-stl/stlport/libs/armeabi-v7a',
+                    ],
+                  }],
+                  ['target_arch=="arm" and armv7==0', {
+                    'ldflags': [
+                      '-L<(android_ndk_root)/sources/cxx-stl/stlport/libs/armeabi',
+                    ],
+                  }],
+                  ['target_arch=="ia32"', {
+                    'ldflags': [
+                      '-L<(android_ndk_root)/sources/cxx-stl/stlport/libs/x86',
+                    ],
+                  }],
+                ],
+              }],
+              ['target_arch=="ia32"', {
+                # The x86 toolchain currently has problems with stack-protector.
+                'cflags!': [
+                  '-fstack-protector',
+                ],
+                'cflags': [
+                  '-fno-stack-protector',
+                ],
+              }],
+            ],
+            'target_conditions': [
+              ['_type=="executable"', {
+                'ldflags': [
+                  '-Bdynamic',
+                  '-Wl,-dynamic-linker,/system/bin/linker',
+                  '-Wl,--gc-sections',
+                  '-Wl,-z,nocopyreloc',
+                  # crtbegin_dynamic.o should be the last item in ldflags.
+                  '<(android_ndk_lib)/crtbegin_dynamic.o',
+                ],
+                'libraries': [
+                  # crtend_android.o needs to be the last item in libraries.
+                  # Do not add any libraries after this!
+                  '<(android_ndk_lib)/crtend_android.o',
+                ],
+              }],
+              ['_type=="shared_library" or _type=="loadable_module"', {
+                'ldflags': [
+                  '-Wl,-shared,-Bsymbolic',
+                  # crtbegin_so.o should be the last item in ldflags.
+                  '<(android_ndk_lib)/crtbegin_so.o',
+                ],
+                'libraries': [
+                  # crtend_so.o needs to be the last item in libraries.
+                  # Do not add any libraries after this!
+                  '<(android_ndk_lib)/crtend_so.o',
+                ],
+              }],
+            ],
+
+           }], # build_with_mozilla== 0
+
+            ],
+            'defines': [
+              'ANDROID',
+              '__GNU_SOURCE=1',  # Necessary for clone()
+              'USE_STLPORT=1',
+              '_STLP_USE_PTR_SPECIALIZATIONS=1',
+              'CHROME_SYMBOLS_ID="<(chrome_symbols_id)"',
+            ],
+           }],
+          # Settings for building host targets using the system toolchain.
+          ['_toolset=="host"', {
+            'cflags!': [
+              # Due to issues in Clang build system, using ASan on 32-bit
+              # binaries on x86_64 host is problematic.
+              # TODO(eugenis): re-enable.
+              '-faddress-sanitizer',
+            ],
+            'ldflags!': [
+              '-faddress-sanitizer',
+              '-Wl,-z,noexecstack',
+              '-Wl,--gc-sections',
+              '-Wl,-O1',
+              '-Wl,--as-needed',
+            ],
+            'sources/': [
+              ['exclude', '_android(_unittest)?\\.cc$'],
+              ['exclude', '(^|/)android/']
+            ],
+          }],
+        ],
+      },
+    }],
+    ['OS=="solaris"', {
+      'cflags!': ['-fvisibility=hidden'],
+      'cflags_cc!': ['-fvisibility-inlines-hidden'],
+    }],
+    ['OS=="mac" or OS=="ios"', {
+      'target_defaults': {
+        'mac_bundle': 0,
+        'xcode_settings': {
+          'ALWAYS_SEARCH_USER_PATHS': 'NO',
+          'GCC_C_LANGUAGE_STANDARD': 'c99',         # -std=c99
+          'GCC_CW_ASM_SYNTAX': 'NO',                # No -fasm-blocks
+          'GCC_ENABLE_CPP_EXCEPTIONS': 'NO',        # -fno-exceptions
+          'GCC_ENABLE_CPP_RTTI': 'NO',              # -fno-rtti
+          'GCC_ENABLE_PASCAL_STRINGS': 'NO',        # No -mpascal-strings
+          # GCC_INLINES_ARE_PRIVATE_EXTERN maps to -fvisibility-inlines-hidden
+          'GCC_INLINES_ARE_PRIVATE_EXTERN': 'YES',
+          'GCC_OBJC_CALL_CXX_CDTORS': 'YES',        # -fobjc-call-cxx-cdtors
+          'GCC_SYMBOLS_PRIVATE_EXTERN': 'YES',      # -fvisibility=hidden
+          'GCC_THREADSAFE_STATICS': 'NO',           # -fno-threadsafe-statics
+          'GCC_TREAT_WARNINGS_AS_ERRORS': 'YES',    # -Werror
+          'GCC_VERSION': '4.2',
+          'GCC_WARN_ABOUT_MISSING_NEWLINE': 'YES',  # -Wnewline-eof
+          'USE_HEADERMAP': 'NO',
+          'WARNING_CFLAGS': [
+            '-Wall',
+            '-Wendif-labels',
+            '-Wextra',
+            # Don't warn about unused function parameters.
+            '-Wno-unused-parameter',
+            # Don't warn about the "struct foo f = {0};" initialization
+            # pattern.
+            '-Wno-missing-field-initializers',
+          ],
+          'conditions': [
+            ['chromium_mac_pch', {'GCC_PRECOMPILE_PREFIX_HEADER': 'YES'},
+                                 {'GCC_PRECOMPILE_PREFIX_HEADER': 'NO'}
+            ],
+          ],
+        },
+        'target_conditions': [
+          ['_type!="static_library"', {
+            'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-search_paths_first']},
+          }],
+          ['_mac_bundle', {
+            'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-ObjC']},
+          }],
+        ],  # target_conditions
+      },  # target_defaults
+    }],  # OS=="mac" or OS=="ios"
+    ['OS=="mac"', {
+      'target_defaults': {
+        'variables': {
+          # These should end with %, but there seems to be a bug with % in
+          # variables that are intended to be set to different values in
+          # different targets, like these.
+          'mac_pie': 1,        # Most executables can be position-independent.
+          'mac_real_dsym': 0,  # Fake .dSYMs are fine in most cases.
+          # Strip debugging symbols from the target.
+          'mac_strip': '<(mac_strip_release)',
+        },
+        'xcode_settings': {
+          'GCC_DYNAMIC_NO_PIC': 'NO',               # No -mdynamic-no-pic
+                                                    # (Equivalent to -fPIC)
+          # MACOSX_DEPLOYMENT_TARGET maps to -mmacosx-version-min
+          'MACOSX_DEPLOYMENT_TARGET': '<(mac_deployment_target)',
+          # Keep pch files below xcodebuild/.
+          'SHARED_PRECOMPS_DIR': '$(CONFIGURATION_BUILD_DIR)/SharedPrecompiledHeaders',
+          'OTHER_CFLAGS': [
+            '-fno-strict-aliasing',  # See http://crbug.com/32204
+          ],
+          'conditions': [
+            ['clang==1', {
+              'CC': '$(SOURCE_ROOT)/<(clang_dir)/clang',
+              'LDPLUSPLUS': '$(SOURCE_ROOT)/<(clang_dir)/clang++',
+
+              # Don't use -Wc++0x-extensions, which Xcode 4 enables by default
+              # when buliding with clang. This warning is triggered when the
+              # override keyword is used via the OVERRIDE macro from
+              # base/compiler_specific.h.
+              'CLANG_WARN_CXX0X_EXTENSIONS': 'NO',
+
+              'GCC_VERSION': 'com.apple.compilers.llvm.clang.1_0',
+              'WARNING_CFLAGS': [
+                '-Wheader-hygiene',
+                # Don't die on dtoa code that uses a char as an array index.
+                # This is required solely for base/third_party/dmg_fp/dtoa.cc.
+                '-Wno-char-subscripts',
+                # Clang spots more unused functions.
+                '-Wno-unused-function',
+                # See comments on this flag higher up in this file.
+                '-Wno-unnamed-type-template-args',
+                # This (rightyfully) complains about 'override', which we use
+                # heavily.
+                '-Wno-c++11-extensions',
+
+                # Warns on switches on enums that cover all enum values but
+                # also contain a default: branch. Chrome is full of that.
+                '-Wno-covered-switch-default',
+
+                # TODO(thakis): Remove this.
+                '-Wno-implicit-conversion-floating-point-to-bool',
+              ],
+            }],
+            ['clang==1 and clang_use_chrome_plugins==1', {
+              'OTHER_CFLAGS': [
+                '<@(clang_chrome_plugins_flags)',
+              ],
+            }],
+            ['clang==1 and clang_load!=""', {
+              'OTHER_CFLAGS': [
+                '-Xclang', '-load', '-Xclang', '<(clang_load)',
+              ],
+            }],
+            ['clang==1 and clang_add_plugin!=""', {
+              'OTHER_CFLAGS': [
+                '-Xclang', '-add-plugin', '-Xclang', '<(clang_add_plugin)',
+              ],
+            }],
+            ['clang==1 and "<(GENERATOR)"=="ninja"', {
+              'OTHER_CFLAGS': [
+                # See http://crbug.com/110262
+                '-fcolor-diagnostics',
+              ],
+            }],
+          ],
+        },
+        'conditions': [
+          ['clang==1', {
+            'variables': {
+              'clang_dir': '../third_party/llvm-build/Release+Asserts/bin',
+            },
+          }],
+          ['asan==1', {
+            'xcode_settings': {
+              'OTHER_CFLAGS': [
+                '-faddress-sanitizer',
+              ],
+            },
+            'defines': [
+              'ADDRESS_SANITIZER',
+            ],
+          }],
+        ],
+        'target_conditions': [
+          ['_type!="static_library"', {
+            'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-search_paths_first']},
+            'conditions': [
+              ['asan==1', {
+                'xcode_settings': {
+                  'OTHER_LDFLAGS': [
+                    '-faddress-sanitizer',
+                  ],
+                },
+              }],
+            ],
+          }],
+          ['_mac_bundle', {
+            'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-ObjC']},
+          }],
+          ['_type=="executable"', {
+            'postbuilds': [
+              {
+                # Arranges for data (heap) pages to be protected against
+                # code execution when running on Mac OS X 10.7 ("Lion"), and
+                # ensures that the position-independent executable (PIE) bit
+                # is set for ASLR when running on Mac OS X 10.5 ("Leopard").
+                'variables': {
+                  # Define change_mach_o_flags in a variable ending in _path
+                  # so that GYP understands it's a path and performs proper
+                  # relativization during dict merging.
+                  'change_mach_o_flags':
+                      'mac/change_mach_o_flags_from_xcode.sh',
+                  'change_mach_o_flags_options%': [
+                  ],
+                  'target_conditions': [
+                    ['mac_pie==0 or release_valgrind_build==1', {
+                      # Don't enable PIE if it's unwanted. It's unwanted if
+                      # the target specifies mac_pie=0 or if building for
+                      # Valgrind, because Valgrind doesn't understand slide.
+                      # See the similar mac_pie/release_valgrind_build check
+                      # below.
+                      'change_mach_o_flags_options': [
+                        '--no-pie',
+                      ],
+                    }],
+                  ],
+                },
+                'postbuild_name': 'Change Mach-O Flags',
+                'action': [
+                   '$(srcdir)$(os_sep)build$(os_sep)<(change_mach_o_flags)',
+                  '>@(change_mach_o_flags_options)',
+                ],
+              },
+            ],
+            'conditions': [
+              ['asan==1', {
+                'variables': {
+                 'asan_saves_file': 'asan.saves',
+                },
+                'xcode_settings': {
+                  'CHROMIUM_STRIP_SAVE_FILE': '<(asan_saves_file)',
+                },
+              }],
+            ],
+            'target_conditions': [
+              ['mac_pie==1 and release_valgrind_build==0', {
+                # Turn on position-independence (ASLR) for executables. When
+                # PIE is on for the Chrome executables, the framework will
+                # also be subject to ASLR.
+                # Don't do this when building for Valgrind, because Valgrind
+                # doesn't understand slide. TODO: Make Valgrind on Mac OS X
+                # understand slide, and get rid of the Valgrind check.
+                'xcode_settings': {
+                  'OTHER_LDFLAGS': [
+                    '-Wl,-pie',  # Position-independent executable (MH_PIE)
+                  ],
+                },
+              }],
+            ],
+          }],
+          ['(_type=="executable" or _type=="shared_library" or \
+             _type=="loadable_module") and mac_strip!=0', {
+            'target_conditions': [
+              ['mac_real_dsym == 1', {
+                # To get a real .dSYM bundle produced by dsymutil, set the
+                # debug information format to dwarf-with-dsym.  Since
+                # strip_from_xcode will not be used, set Xcode to do the
+                # stripping as well.
+                'configurations': {
+                  'Release_Base': {
+                    'xcode_settings': {
+                      'DEBUG_INFORMATION_FORMAT': 'dwarf-with-dsym',
+                      'DEPLOYMENT_POSTPROCESSING': 'YES',
+                      'STRIP_INSTALLED_PRODUCT': 'YES',
+                      'target_conditions': [
+                        ['_type=="shared_library" or _type=="loadable_module"', {
+                          # The Xcode default is to strip debugging symbols
+                          # only (-S).  Local symbols should be stripped as
+                          # well, which will be handled by -x.  Xcode will
+                          # continue to insert -S when stripping even when
+                          # additional flags are added with STRIPFLAGS.
+                          'STRIPFLAGS': '-x',
+                        }],  # _type=="shared_library" or _type=="loadable_module"'
+                      ],  # target_conditions
+                    },  # xcode_settings
+                  },  # configuration "Release"
+                },  # configurations
+              }, {  # mac_real_dsym != 1
+                # To get a fast fake .dSYM bundle, use a post-build step to
+                # produce the .dSYM and strip the executable.  strip_from_xcode
+                # only operates in the Release configuration.
+                'postbuilds': [
+                  {
+                    'variables': {
+                      # Define strip_from_xcode in a variable ending in _path
+                      # so that gyp understands it's a path and performs proper
+                      # relativization during dict merging.
+                      'strip_from_xcode': 'mac/strip_from_xcode',
+                    },
+                    'postbuild_name': 'Strip If Needed',
+                    'action': ['$(srcdir)$(os_sep)build$(os_sep)<(strip_from_xcode)'],
+                  },
+                ],  # postbuilds
+              }],  # mac_real_dsym
+            ],  # target_conditions
+          }],  # (_type=="executable" or _type=="shared_library" or
+               #  _type=="loadable_module") and mac_strip!=0
+        ],  # target_conditions
+      },  # target_defaults
+    }],  # OS=="mac"
+    ['OS=="ios"', {
+      'target_defaults': {
+        'xcode_settings' : {
+          'GCC_VERSION': 'com.apple.compilers.llvm.clang.1_0',
+
+          # This next block is mostly common with the 'mac' section above,
+          # but keying off (or setting) 'clang' isn't valid for iOS as it
+          # also seems to mean using the custom build of clang.
+
+          # Don't use -Wc++0x-extensions, which Xcode 4 enables by default
+          # when buliding with clang. This warning is triggered when the
+          # override keyword is used via the OVERRIDE macro from
+          # base/compiler_specific.h.
+          'CLANG_WARN_CXX0X_EXTENSIONS': 'NO',
+          'WARNING_CFLAGS': [
+            '-Wheader-hygiene',
+            # Don't die on dtoa code that uses a char as an array index.
+            # This is required solely for base/third_party/dmg_fp/dtoa.cc.
+            '-Wno-char-subscripts',
+            # Clang spots more unused functions.
+            '-Wno-unused-function',
+            # See comments on this flag higher up in this file.
+            '-Wno-unnamed-type-template-args',
+            # This (rightyfully) complains about 'override', which we use
+            # heavily.
+            '-Wno-c++11-extensions',
+          ],
+        },
+        'target_conditions': [
+          ['_type=="executable"', {
+            'configurations': {
+              'Release_Base': {
+                'xcode_settings': {
+                  'DEPLOYMENT_POSTPROCESSING': 'YES',
+                  'STRIP_INSTALLED_PRODUCT': 'YES',
+                },
+              },
+            },
+            'xcode_settings': {
+              'conditions': [
+                ['chromium_ios_signing', {
+                  # iOS SDK wants everything for device signed.
+                  'CODE_SIGN_IDENTITY[sdk=iphoneos*]': 'iPhone Developer',
+                }, {
+                  'CODE_SIGNING_REQUIRED': 'NO',
+                  'CODE_SIGN_IDENTITY[sdk=iphoneos*]': '',
+                }],
+              ],
+            },
+          }],
+        ],  # target_conditions
+      },  # target_defaults
+    }],  # OS=="ios"
+    ['OS=="win"', {
+      'target_defaults': {
+        'defines': [
+          'WIN32',
+          '_WINDOWS',
+          'NOMINMAX',
+          '_CRT_RAND_S',
+          'CERT_CHAIN_PARA_HAS_EXTRA_FIELDS',
+          'WIN32_LEAN_AND_MEAN',
+          '_ATL_NO_OPENGL',
+        ],
+        'conditions': [
+          ['build_with_mozilla==0', {
+              'defines': [
+                '_WIN32_WINNT=0x0602',
+                'WINVER=0x0602',
+              ],
+          }],
+          ['buildtype=="Official"', {
+              # In official builds, targets can self-select an optimization
+              # level by defining a variable named 'optimize', and setting it
+              # to one of
+              # - "size", optimizes for minimal code size - the default.
+              # - "speed", optimizes for speed over code size.
+              # - "max", whole program optimization and link-time code
+              #   generation. This is very expensive and should be used
+              #   sparingly.
+              'variables': {
+                'optimize%': 'size',
+              },
+              'target_conditions': [
+                ['optimize=="size"', {
+                    'msvs_settings': {
+                      'VCCLCompilerTool': {
+                        # 1, optimizeMinSpace, Minimize Size (/O1)
+                        'Optimization': '1',
+                        # 2, favorSize - Favor small code (/Os)
+                        'FavorSizeOrSpeed': '2',
+                      },
+                    },
+                  },
+                ],
+                ['optimize=="speed"', {
+                    'msvs_settings': {
+                      'VCCLCompilerTool': {
+                        # 2, optimizeMaxSpeed, Maximize Speed (/O2)
+                        'Optimization': '2',
+                        # 1, favorSpeed - Favor fast code (/Ot)
+                        'FavorSizeOrSpeed': '1',
+                      },
+                    },
+                  },
+                ],
+                ['optimize=="max"', {
+                    'msvs_settings': {
+                      'VCCLCompilerTool': {
+                        # 2, optimizeMaxSpeed, Maximize Speed (/O2)
+                        'Optimization': '2',
+                        # 1, favorSpeed - Favor fast code (/Ot)
+                        'FavorSizeOrSpeed': '1',
+                        # This implies link time code generation.
+                        'WholeProgramOptimization': 'true',
+                      },
+                    },
+                  },
+                ],
+              ],
+            },
+          ],
+          ['component=="static_library"', {
+            'defines': [
+              '_HAS_EXCEPTIONS=0',
+            ],
+          }],
+          ['MSVS_VERSION=="2008"', {
+            'defines': [
+              '_HAS_TR1=0',
+            ],
+          }],
+          ['secure_atl', {
+            'defines': [
+              '_SECURE_ATL',
+            ],
+          }],
+        ],
+        'msvs_system_include_dirs': [
+          '<(windows_sdk_path)/Include/shared',
+          '<(windows_sdk_path)/Include/um',
+          '<(windows_sdk_path)/Include/winrt',
+#          '<(directx_sdk_path)/Include',
+          '$(VSInstallDir)/VC/atlmfc/include',
+        ],
+        'msvs_cygwin_dirs': ['<(DEPTH)/third_party/cygwin'],
+        'msvs_disabled_warnings': [4351, 4396, 4503, 4819,
+          # TODO(maruel): These warnings are level 4. They will be slowly
+          # removed as code is fixed.
+          4100, 4121, 4125, 4127, 4130, 4131, 4189, 4201, 4238, 4244, 4245,
+          4310, 4355, 4428, 4481, 4505, 4510, 4512, 4530, 4610, 4611, 4701,
+          4702, 4706,
+        ],
+        'msvs_settings': {
+          'VCCLCompilerTool': {
+            'AdditionalOptions': ['/MP'],
+            'MinimalRebuild': 'false',
+            'BufferSecurityCheck': 'true',
+            'EnableFunctionLevelLinking': 'true',
+            'RuntimeTypeInfo': 'false',
+            'WarningLevel': '4',
+            'WarnAsError': 'true',
+            'DebugInformationFormat': '3',
+            'conditions': [
+              ['component=="shared_library"', {
+                'ExceptionHandling': '1',  # /EHsc
+              }, {
+                'ExceptionHandling': '0',
+              }],
+            ],
+          },
+          'VCLibrarianTool': {
+            'AdditionalOptions': ['/ignore:4221'],
+            'AdditionalLibraryDirectories': [
+#              '<(directx_sdk_path)/Lib/x86',
+              '<(windows_sdk_path)/Lib/win8/um/x86',
+            ],
+          },
+          'VCLinkerTool': {
+            'AdditionalDependencies': [
+              'wininet.lib',
+              'dnsapi.lib',
+              'version.lib',
+              'msimg32.lib',
+              'ws2_32.lib',
+              'usp10.lib',
+              'dbghelp.lib',
+              'winmm.lib',
+              'shlwapi.lib',
+            ],
+
+            'conditions': [
+              ['msvs_express', {
+                # Explicitly required when using the ATL with express
+                'AdditionalDependencies': [
+                  'atlthunk.lib',
+                ],
+
+                # ATL 8.0 included in WDK 7.1 makes the linker to generate
+                # almost eight hundred LNK4254 and LNK4078 warnings:
+                #   - warning LNK4254: section 'ATL' (50000040) merged into
+                #     '.rdata' (40000040) with different attributes
+                #   - warning LNK4078: multiple 'ATL' sections found with
+                #     different attributes
+                'AdditionalOptions': ['/ignore:4254', '/ignore:4078'],
+              }],
+              ['MSVS_VERSION=="2005e"', {
+                # Non-express versions link automatically to these
+                'AdditionalDependencies': [
+                  'advapi32.lib',
+                  'comdlg32.lib',
+                  'ole32.lib',
+                  'shell32.lib',
+                  'user32.lib',
+                  'winspool.lib',
+                ],
+              }],
+            ],
+            'AdditionalLibraryDirectories': [
+#              '<(directx_sdk_path)/Lib/x86', XXXX
+              '<(windows_sdk_path)/Lib/win8/um/x86',
+            ],
+            'GenerateDebugInformation': 'true',
+            'MapFileName': '$(OutDir)\\$(TargetName).map',
+            'ImportLibrary': '$(OutDir)\\lib\\$(TargetName).lib',
+            'FixedBaseAddress': '1',
+            # SubSystem values:
+            #   0 == not set
+            #   1 == /SUBSYSTEM:CONSOLE
+            #   2 == /SUBSYSTEM:WINDOWS
+            # Most of the executables we'll ever create are tests
+            # and utilities with console output.
+            'SubSystem': '1',
+          },
+          'VCMIDLTool': {
+            'GenerateStublessProxies': 'true',
+            'TypeLibraryName': '$(InputName).tlb',
+            'OutputDirectory': '$(IntDir)',
+            'HeaderFileName': '$(InputName).h',
+            'DLLDataFileName': '$(InputName).dlldata.c',
+            'InterfaceIdentifierFileName': '$(InputName)_i.c',
+            'ProxyFileName': '$(InputName)_p.c',
+          },
+          'VCResourceCompilerTool': {
+            'Culture' : '1033',
+            'AdditionalIncludeDirectories': [
+              '<(DEPTH)',
+              '<(SHARED_INTERMEDIATE_DIR)',
+            ],
+          },
+        },
+      },
+    }],
+    ['disable_nacl==1', {
+      'target_defaults': {
+        'defines': [
+          'DISABLE_NACL',
+        ],
+      },
+    }],
+    ['OS=="win" and msvs_use_common_linker_extras', {
+      'target_defaults': {
+        'msvs_settings': {
+          'VCLinkerTool': {
+            'DelayLoadDLLs': [
+              'dbghelp.dll',
+              'dwmapi.dll',
+              'shell32.dll',
+              'uxtheme.dll',
+            ],
+          },
+        },
+        'configurations': {
+          'x86_Base': {
+            'msvs_settings': {
+              'VCLinkerTool': {
+                'AdditionalOptions': [
+                  '/safeseh',
+                  '/dynamicbase',
+                  '/ignore:4199',
+                  '/ignore:4221',
+                  '/nxcompat',
+                ],
+              },
+            },
+          },
+          'x64_Base': {
+            'msvs_settings': {
+              'VCLinkerTool': {
+                'AdditionalOptions': [
+                  # safeseh is not compatible with x64
+                  '/dynamicbase',
+                  '/ignore:4199',
+                  '/ignore:4221',
+                  '/nxcompat',
+                ],
+              },
+            },
+          },
+        },
+      },
+    }],
+    ['enable_new_npdevice_api==1', {
+      'target_defaults': {
+        'defines': [
+          'ENABLE_NEW_NPDEVICE_API',
+        ],
+      },
+    }],
+  ],
+  'xcode_settings': {
+    # DON'T ADD ANYTHING NEW TO THIS BLOCK UNLESS YOU REALLY REALLY NEED IT!
+    # This block adds *project-wide* configuration settings to each project
+    # file.  It's almost always wrong to put things here.  Specify your
+    # custom xcode_settings in target_defaults to add them to targets instead.
+
+    'conditions': [
+      # In an Xcode Project Info window, the "Base SDK for All Configurations"
+      # setting sets the SDK on a project-wide basis. In order to get the
+      # configured SDK to show properly in the Xcode UI, SDKROOT must be set
+      # here at the project level.
+      ['OS=="mac"', {
+        'conditions': [
+          ['mac_sdk_path==""', {
+            'SDKROOT': 'macosx<(mac_sdk)',  # -isysroot
+          }, {
+            'SDKROOT': '<(mac_sdk_path)',  # -isysroot
+          }],
+        ],
+      }],
+      ['OS=="ios"', {
+        'conditions': [
+          ['ios_sdk_path==""', {
+            'SDKROOT': 'iphoneos<(ios_sdk)',  # -isysroot
+          }, {
+            'SDKROOT': '<(ios_sdk_path)',  # -isysroot
+          }],
+        ],
+      }],
+      ['OS=="ios"', {
+        # Just build armv7 since iOS 4.3+ only supports armv7.
+        'ARCHS': '$(ARCHS_UNIVERSAL_IPHONE_OS)',
+        'IPHONEOS_DEPLOYMENT_TARGET': '<(ios_deployment_target)',
+        # Target both iPhone and iPad.
+        'TARGETED_DEVICE_FAMILY': '1,2',
+      }],
+    ],
+
+    # The Xcode generator will look for an xcode_settings section at the root
+    # of each dict and use it to apply settings on a file-wide basis.  Most
+    # settings should not be here, they should be in target-specific
+    # xcode_settings sections, or better yet, should use non-Xcode-specific
+    # settings in target dicts.  SYMROOT is a special case, because many other
+    # Xcode variables depend on it, including variables such as
+    # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
+    # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
+    # files to appear (when present) in the UI as actual files and not red
+    # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
+    # and therefore SYMROOT, needs to be set at the project level.
+    'SYMROOT': '<(DEPTH)/xcodebuild',
+  },
+}