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diff --git a/third_party/libwebrtc/build/sanitizers/lsan_suppressions.cc b/third_party/libwebrtc/build/sanitizers/lsan_suppressions.cc
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+++ b/third_party/libwebrtc/build/sanitizers/lsan_suppressions.cc
@@ -0,0 +1,78 @@
+// Copyright 2015 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.
+
+// This file contains the default suppressions for LeakSanitizer.
+// You can also pass additional suppressions via LSAN_OPTIONS:
+// LSAN_OPTIONS=suppressions=/path/to/suppressions. Please refer to
+// http://dev.chromium.org/developers/testing/leaksanitizer for more info.
+
+#if defined(LEAK_SANITIZER)
+
+// Please make sure the code below declares a single string variable
+// kLSanDefaultSuppressions which contains LSan suppressions delimited by
+// newlines. See http://dev.chromium.org/developers/testing/leaksanitizer
+// for the instructions on writing suppressions.
+char kLSanDefaultSuppressions[] =
+    // Intentional leak used as sanity test for Valgrind/memcheck.
+    "leak:base::ToolsSanityTest_MemoryLeak_Test::TestBody\n"
+
+    // ================ Leaks in third-party code ================
+
+    // False positives in libfontconfig. http://crbug.com/39050
+    "leak:libfontconfig\n"
+    // eglibc-2.19/string/strdup.c creates false positive leak errors because of
+    // the same reason as crbug.com/39050. The leak error stack trace, when
+    // unwind on malloc, includes a call to libfontconfig. But the default stack
+    // trace is too short in leak sanitizer bot to make the libfontconfig
+    // suppression works. http://crbug.com/605286
+    "leak:__strdup\n"
+
+    // Leaks in Nvidia's libGL.
+    "leak:libGL.so\n"
+    "leak:libGLX_nvidia.so\n"
+    "leak:libnvidia-glcore.so\n"
+
+    // XRandR has several one time leaks.
+    "leak:libxrandr\n"
+
+    // xrandr leak. http://crbug.com/119677
+    "leak:XRRFindDisplay\n"
+
+    // http://crbug.com/431213, http://crbug.com/416665
+    "leak:gin/object_template_builder.h\n"
+    "leak:gin/function_template.h\n"
+
+    // Leaks in swrast_dri.so. http://crbug.com/540042
+    "leak:swrast_dri.so\n"
+
+    // Leak in glibc's gconv caused by fopen(..., "r,ccs=UNICODE")
+    "leak:__gconv_lookup_cache\n"
+
+    // ================ Leaks in Chromium code ================
+    // PLEASE DO NOT ADD SUPPRESSIONS FOR NEW LEAKS.
+    // Instead, commits that introduce memory leaks should be reverted.
+    // Suppressing the leak is acceptable in some cases when reverting is
+    // impossible, i.e. when enabling leak detection for the first time for a
+    // test target with pre-existing leaks.
+
+    // https://crbug.com/755670
+    "leak:third_party/yasm/\n"
+
+    // v8 leaks caused by weak ref not call
+    "leak:blink::DOMWrapperWorld::Create\n"
+    "leak:blink::ScriptState::Create\n"
+
+    // Crash keys are intentionally leaked.
+    "leak:crash_reporter::(anonymous "
+    "namespace)::CrashKeyBaseSupport::Allocate\n"
+
+    // Suppress leaks in CreateCdmInstance. https://crbug.com/961062
+    "leak:media::CdmAdapter::CreateCdmInstance\n"
+
+    // PLEASE READ ABOVE BEFORE ADDING NEW SUPPRESSIONS.
+
+    // End of suppressions.
+    ;  // Please keep this semicolon.
+
+#endif  // LEAK_SANITIZER