Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 562 insertions, 0 deletions

diff --git a/widget/cocoa/GfxInfo.mm b/widget/cocoa/GfxInfo.mm
new file mode 100644
index 0000000000..1476cc27db
--- /dev/null
+++ b/widget/cocoa/GfxInfo.mm
@@ -0,0 +1,562 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <OpenGL/OpenGL.h>
+#include <OpenGL/CGLRenderers.h>
+
+#include "mozilla/ArrayUtils.h"
+
+#include "GfxInfo.h"
+#include "nsUnicharUtils.h"
+#include "nsExceptionHandler.h"
+#include "nsCocoaFeatures.h"
+#include "nsCocoaUtils.h"
+#include "mozilla/Preferences.h"
+#include "js/PropertyAndElement.h"  // JS_SetElement, JS_SetProperty
+
+#include <algorithm>
+
+#import <Foundation/Foundation.h>
+#import <IOKit/IOKitLib.h>
+#import <Cocoa/Cocoa.h>
+
+#include "jsapi.h"
+
+using namespace mozilla;
+using namespace mozilla::widget;
+
+#ifdef DEBUG
+NS_IMPL_ISUPPORTS_INHERITED(GfxInfo, GfxInfoBase, nsIGfxInfoDebug)
+#endif
+
+GfxInfo::GfxInfo() : mNumGPUsDetected(0), mOSXVersion{0} {
+  mAdapterRAM[0] = mAdapterRAM[1] = 0;
+}
+
+static OperatingSystem OSXVersionToOperatingSystem(uint32_t aOSXVersion) {
+  switch (nsCocoaFeatures::ExtractMajorVersion(aOSXVersion)) {
+    case 10:
+      switch (nsCocoaFeatures::ExtractMinorVersion(aOSXVersion)) {
+        case 6:
+          return OperatingSystem::OSX10_6;
+        case 7:
+          return OperatingSystem::OSX10_7;
+        case 8:
+          return OperatingSystem::OSX10_8;
+        case 9:
+          return OperatingSystem::OSX10_9;
+        case 10:
+          return OperatingSystem::OSX10_10;
+        case 11:
+          return OperatingSystem::OSX10_11;
+        case 12:
+          return OperatingSystem::OSX10_12;
+        case 13:
+          return OperatingSystem::OSX10_13;
+        case 14:
+          return OperatingSystem::OSX10_14;
+        case 15:
+          return OperatingSystem::OSX10_15;
+        case 16:
+          // Depending on the SDK version, we either get 10.16 or 11.0.
+          // Normalize this to 11.0.
+          return OperatingSystem::OSX11_0;
+        default:
+          break;
+      }
+      break;
+    case 11:
+      switch (nsCocoaFeatures::ExtractMinorVersion(aOSXVersion)) {
+        case 0:
+          return OperatingSystem::OSX11_0;
+        default:
+          break;
+      }
+      break;
+  }
+
+  return OperatingSystem::Unknown;
+}
+// The following three functions are derived from Chromium code
+static CFTypeRef SearchPortForProperty(io_registry_entry_t dspPort,
+                                       CFStringRef propertyName) {
+  return IORegistryEntrySearchCFProperty(
+      dspPort, kIOServicePlane, propertyName, kCFAllocatorDefault,
+      kIORegistryIterateRecursively | kIORegistryIterateParents);
+}
+
+static uint32_t IntValueOfCFData(CFDataRef d) {
+  uint32_t value = 0;
+
+  if (d) {
+    const uint32_t* vp = reinterpret_cast<const uint32_t*>(CFDataGetBytePtr(d));
+    if (vp != NULL) value = *vp;
+  }
+
+  return value;
+}
+
+void GfxInfo::GetDeviceInfo() {
+  mNumGPUsDetected = 0;
+
+  CFMutableDictionaryRef pci_dev_dict = IOServiceMatching("IOPCIDevice");
+  io_iterator_t io_iter;
+  if (IOServiceGetMatchingServices(kIOMasterPortDefault, pci_dev_dict,
+                                   &io_iter) != kIOReturnSuccess) {
+    MOZ_DIAGNOSTIC_ASSERT(
+        false,
+        "Failed to detect any GPUs (couldn't enumerate IOPCIDevice services)");
+    return;
+  }
+
+  io_registry_entry_t entry = IO_OBJECT_NULL;
+  while ((entry = IOIteratorNext(io_iter)) != IO_OBJECT_NULL) {
+    constexpr uint32_t kClassCodeDisplayVGA = 0x30000;
+    CFTypeRef class_code_ref =
+        SearchPortForProperty(entry, CFSTR("class-code"));
+    if (class_code_ref) {
+      const uint32_t class_code = IntValueOfCFData((CFDataRef)class_code_ref);
+      CFRelease(class_code_ref);
+
+      if (class_code == kClassCodeDisplayVGA) {
+        CFTypeRef vendor_id_ref =
+            SearchPortForProperty(entry, CFSTR("vendor-id"));
+        if (vendor_id_ref) {
+          mAdapterVendorID[mNumGPUsDetected].AppendPrintf(
+              "0x%04x", IntValueOfCFData((CFDataRef)vendor_id_ref));
+          CFRelease(vendor_id_ref);
+        }
+        CFTypeRef device_id_ref =
+            SearchPortForProperty(entry, CFSTR("device-id"));
+        if (device_id_ref) {
+          mAdapterDeviceID[mNumGPUsDetected].AppendPrintf(
+              "0x%04x", IntValueOfCFData((CFDataRef)device_id_ref));
+          CFRelease(device_id_ref);
+        }
+        ++mNumGPUsDetected;
+      }
+    }
+    IOObjectRelease(entry);
+    if (mNumGPUsDetected == 2) {
+      break;
+    }
+  }
+  IOObjectRelease(io_iter);
+
+  // If we found IOPCI VGA devices, don't look for other devices
+  if (mNumGPUsDetected > 0) {
+    return;
+  }
+
+#if defined(__aarch64__)
+  CFMutableDictionaryRef agx_dev_dict = IOServiceMatching("AGXAccelerator");
+  if (IOServiceGetMatchingServices(kIOMasterPortDefault, agx_dev_dict,
+                                   &io_iter) == kIOReturnSuccess) {
+    io_registry_entry_t entry = IO_OBJECT_NULL;
+    while ((entry = IOIteratorNext(io_iter)) != IO_OBJECT_NULL) {
+      CFTypeRef vendor_id_ref =
+          SearchPortForProperty(entry, CFSTR("vendor-id"));
+      if (vendor_id_ref) {
+        mAdapterVendorID[mNumGPUsDetected].AppendPrintf(
+            "0x%04x", IntValueOfCFData((CFDataRef)vendor_id_ref));
+        CFRelease(vendor_id_ref);
+        ++mNumGPUsDetected;
+      }
+      IOObjectRelease(entry);
+    }
+
+    IOObjectRelease(io_iter);
+  }
+
+  // If we found an AGXAccelerator, don't look for an AppleParavirtGPU
+  if (mNumGPUsDetected > 0) {
+    return;
+  }
+#endif
+
+  CFMutableDictionaryRef apv_dev_dict = IOServiceMatching("AppleParavirtGPU");
+  if (IOServiceGetMatchingServices(kIOMasterPortDefault, apv_dev_dict,
+                                   &io_iter) == kIOReturnSuccess) {
+    io_registry_entry_t entry = IO_OBJECT_NULL;
+    while ((entry = IOIteratorNext(io_iter)) != IO_OBJECT_NULL) {
+      CFTypeRef vendor_id_ref =
+          SearchPortForProperty(entry, CFSTR("vendor-id"));
+      if (vendor_id_ref) {
+        mAdapterVendorID[mNumGPUsDetected].AppendPrintf(
+            "0x%04x", IntValueOfCFData((CFDataRef)vendor_id_ref));
+        CFRelease(vendor_id_ref);
+      }
+
+      CFTypeRef device_id_ref =
+          SearchPortForProperty(entry, CFSTR("device-id"));
+      if (device_id_ref) {
+        mAdapterDeviceID[mNumGPUsDetected].AppendPrintf(
+            "0x%04x", IntValueOfCFData((CFDataRef)device_id_ref));
+        CFRelease(device_id_ref);
+      }
+      ++mNumGPUsDetected;
+      IOObjectRelease(entry);
+    }
+
+    IOObjectRelease(io_iter);
+  }
+
+  MOZ_DIAGNOSTIC_ASSERT(mNumGPUsDetected > 0, "Failed to detect any GPUs");
+}
+
+nsresult GfxInfo::Init() {
+  nsresult rv = GfxInfoBase::Init();
+
+  // Calling CGLQueryRendererInfo causes us to switch to the discrete GPU
+  // even when we don't want to. We'll avoid doing so for now and just
+  // use the device ids.
+
+  GetDeviceInfo();
+
+  AddCrashReportAnnotations();
+
+  mOSXVersion = nsCocoaFeatures::macOSVersion();
+
+  return rv;
+}
+
+NS_IMETHODIMP
+GfxInfo::GetD2DEnabled(bool* aEnabled) { return NS_ERROR_FAILURE; }
+
+NS_IMETHODIMP
+GfxInfo::GetDWriteEnabled(bool* aEnabled) { return NS_ERROR_FAILURE; }
+
+/* readonly attribute bool HasBattery; */
+NS_IMETHODIMP GfxInfo::GetHasBattery(bool* aHasBattery) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* readonly attribute DOMString DWriteVersion; */
+NS_IMETHODIMP
+GfxInfo::GetDWriteVersion(nsAString& aDwriteVersion) {
+  return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+GfxInfo::GetEmbeddedInFirefoxReality(bool* aEmbeddedInFirefoxReality) {
+  return NS_ERROR_FAILURE;
+}
+
+/* readonly attribute DOMString cleartypeParameters; */
+NS_IMETHODIMP
+GfxInfo::GetCleartypeParameters(nsAString& aCleartypeParams) {
+  return NS_ERROR_FAILURE;
+}
+
+/* readonly attribute DOMString windowProtocol; */
+NS_IMETHODIMP
+GfxInfo::GetWindowProtocol(nsAString& aWindowProtocol) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* readonly attribute DOMString testType; */
+NS_IMETHODIMP
+GfxInfo::GetTestType(nsAString& aTestType) { return NS_ERROR_NOT_IMPLEMENTED; }
+
+/* readonly attribute DOMString adapterDescription; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDescription(nsAString& aAdapterDescription) {
+  aAdapterDescription.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterDescription2; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDescription2(nsAString& aAdapterDescription) {
+  if (mNumGPUsDetected < 2) {
+    return NS_ERROR_FAILURE;
+  }
+  aAdapterDescription.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterRAM; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterRAM(uint32_t* aAdapterRAM) {
+  *aAdapterRAM = mAdapterRAM[0];
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterRAM2; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterRAM2(uint32_t* aAdapterRAM) {
+  if (mNumGPUsDetected < 2) {
+    return NS_ERROR_FAILURE;
+  }
+  *aAdapterRAM = mAdapterRAM[1];
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterDriver; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDriver(nsAString& aAdapterDriver) {
+  aAdapterDriver.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterDriver2; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDriver2(nsAString& aAdapterDriver) {
+  if (mNumGPUsDetected < 2) {
+    return NS_ERROR_FAILURE;
+  }
+  aAdapterDriver.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterDriverVendor; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDriverVendor(nsAString& aAdapterDriverVendor) {
+  aAdapterDriverVendor.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterDriverVendor2; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDriverVendor2(nsAString& aAdapterDriverVendor) {
+  if (mNumGPUsDetected < 2) {
+    return NS_ERROR_FAILURE;
+  }
+  aAdapterDriverVendor.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterDriverVersion; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDriverVersion(nsAString& aAdapterDriverVersion) {
+  aAdapterDriverVersion.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterDriverVersion2; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDriverVersion2(nsAString& aAdapterDriverVersion) {
+  if (mNumGPUsDetected < 2) {
+    return NS_ERROR_FAILURE;
+  }
+  aAdapterDriverVersion.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterDriverDate; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDriverDate(nsAString& aAdapterDriverDate) {
+  aAdapterDriverDate.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterDriverDate2; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDriverDate2(nsAString& aAdapterDriverDate) {
+  if (mNumGPUsDetected < 2) {
+    return NS_ERROR_FAILURE;
+  }
+  aAdapterDriverDate.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterVendorID; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterVendorID(nsAString& aAdapterVendorID) {
+  aAdapterVendorID = mAdapterVendorID[0];
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterVendorID2; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterVendorID2(nsAString& aAdapterVendorID) {
+  if (mNumGPUsDetected < 2) {
+    return NS_ERROR_FAILURE;
+  }
+  aAdapterVendorID = mAdapterVendorID[1];
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterDeviceID; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDeviceID(nsAString& aAdapterDeviceID) {
+  aAdapterDeviceID = mAdapterDeviceID[0];
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterDeviceID2; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDeviceID2(nsAString& aAdapterDeviceID) {
+  if (mNumGPUsDetected < 2) {
+    return NS_ERROR_FAILURE;
+  }
+  aAdapterDeviceID = mAdapterDeviceID[1];
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterSubsysID; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterSubsysID(nsAString& aAdapterSubsysID) {
+  return NS_ERROR_FAILURE;
+}
+
+/* readonly attribute DOMString adapterSubsysID2; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterSubsysID2(nsAString& aAdapterSubsysID) {
+  return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+GfxInfo::GetDrmRenderDevice(nsACString& aDrmRenderDevice) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* readonly attribute boolean isGPU2Active; */
+NS_IMETHODIMP
+GfxInfo::GetIsGPU2Active(bool* aIsGPU2Active) { return NS_ERROR_FAILURE; }
+
+void GfxInfo::AddCrashReportAnnotations() {
+  nsString deviceID, vendorID, driverVersion;
+  nsAutoCString narrowDeviceID, narrowVendorID, narrowDriverVersion;
+
+  GetAdapterDeviceID(deviceID);
+  CopyUTF16toUTF8(deviceID, narrowDeviceID);
+  GetAdapterVendorID(vendorID);
+  CopyUTF16toUTF8(vendorID, narrowVendorID);
+  GetAdapterDriverVersion(driverVersion);
+  CopyUTF16toUTF8(driverVersion, narrowDriverVersion);
+
+  CrashReporter::AnnotateCrashReport(CrashReporter::Annotation::AdapterVendorID,
+                                     narrowVendorID);
+  CrashReporter::AnnotateCrashReport(CrashReporter::Annotation::AdapterDeviceID,
+                                     narrowDeviceID);
+  CrashReporter::AnnotateCrashReport(
+      CrashReporter::Annotation::AdapterDriverVersion, narrowDriverVersion);
+}
+
+// We don't support checking driver versions on Mac.
+#define IMPLEMENT_MAC_DRIVER_BLOCKLIST(os, device, features, blockOn, ruleId)  \
+  APPEND_TO_DRIVER_BLOCKLIST(os, device, features, blockOn,                    \
+                             DRIVER_COMPARISON_IGNORED, V(0, 0, 0, 0), ruleId, \
+                             "")
+
+const nsTArray<GfxDriverInfo>& GfxInfo::GetGfxDriverInfo() {
+  if (!sDriverInfo->Length()) {
+    IMPLEMENT_MAC_DRIVER_BLOCKLIST(
+        OperatingSystem::OSX, DeviceFamily::RadeonX1000,
+        nsIGfxInfo::FEATURE_OPENGL_LAYERS, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
+        "FEATURE_FAILURE_MAC_RADEONX1000_NO_TEXTURE2D");
+    IMPLEMENT_MAC_DRIVER_BLOCKLIST(
+        OperatingSystem::OSX, DeviceFamily::Geforce7300GT,
+        nsIGfxInfo::FEATURE_WEBGL_OPENGL, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
+        "FEATURE_FAILURE_MAC_7300_NO_WEBGL");
+    IMPLEMENT_MAC_DRIVER_BLOCKLIST(
+        OperatingSystem::OSX, DeviceFamily::IntelHDGraphicsToIvyBridge,
+        nsIGfxInfo::FEATURE_GL_SWIZZLE, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
+        "FEATURE_FAILURE_MAC_INTELHD4000_NO_SWIZZLE");
+    // We block texture swizzling everwhere on mac because it's broken in some
+    // configurations and we want to support GPU switching.
+    IMPLEMENT_MAC_DRIVER_BLOCKLIST(
+        OperatingSystem::OSX, DeviceFamily::All, nsIGfxInfo::FEATURE_GL_SWIZZLE,
+        nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
+        "FEATURE_FAILURE_MAC_GPU_SWITCHING_NO_SWIZZLE");
+
+    // Older generation Intel devices do not perform well with WebRender.
+    IMPLEMENT_MAC_DRIVER_BLOCKLIST(
+        OperatingSystem::OSX, DeviceFamily::IntelWebRenderBlocked,
+        nsIGfxInfo::FEATURE_WEBRENDER, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
+        "FEATURE_FAILURE_INTEL_GEN5_OR_OLDER");
+
+    // Intel HD3000 disabled due to bug 1661505
+    IMPLEMENT_MAC_DRIVER_BLOCKLIST(
+        OperatingSystem::OSX, DeviceFamily::IntelSandyBridge,
+        nsIGfxInfo::FEATURE_WEBRENDER, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
+        "FEATURE_FAILURE_INTEL_MAC_HD3000_NO_WEBRENDER");
+
+    // wgpu doesn't safely support OOB behavior on Metal yet.
+    IMPLEMENT_MAC_DRIVER_BLOCKLIST(
+        OperatingSystem::OSX, DeviceFamily::All, nsIGfxInfo::FEATURE_WEBGPU,
+        nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
+        "FEATURE_FAILURE_MAC_WGPU_NO_METAL_BOUNDS_CHECKS");
+  }
+  return *sDriverInfo;
+}
+
+OperatingSystem GfxInfo::GetOperatingSystem() {
+  return OSXVersionToOperatingSystem(mOSXVersion);
+}
+
+nsresult GfxInfo::GetFeatureStatusImpl(
+    int32_t aFeature, int32_t* aStatus, nsAString& aSuggestedDriverVersion,
+    const nsTArray<GfxDriverInfo>& aDriverInfo, nsACString& aFailureId,
+    OperatingSystem* aOS /* = nullptr */) {
+  NS_ENSURE_ARG_POINTER(aStatus);
+  aSuggestedDriverVersion.SetIsVoid(true);
+  *aStatus = nsIGfxInfo::FEATURE_STATUS_UNKNOWN;
+  OperatingSystem os = OSXVersionToOperatingSystem(mOSXVersion);
+  if (aOS) *aOS = os;
+
+  if (sShutdownOccurred) {
+    return NS_OK;
+  }
+
+  // Don't evaluate special cases when we're evaluating the downloaded
+  // blocklist.
+  if (!aDriverInfo.Length()) {
+    if (aFeature == nsIGfxInfo::FEATURE_CANVAS2D_ACCELERATION) {
+      // See bug 1249659
+      switch (os) {
+        case OperatingSystem::OSX10_5:
+        case OperatingSystem::OSX10_6:
+        case OperatingSystem::OSX10_7:
+          *aStatus = nsIGfxInfo::FEATURE_BLOCKED_OS_VERSION;
+          aFailureId = "FEATURE_FAILURE_CANVAS_OSX_VERSION";
+          break;
+        default:
+          *aStatus = nsIGfxInfo::FEATURE_STATUS_OK;
+          break;
+      }
+      return NS_OK;
+    } else if (aFeature == nsIGfxInfo::FEATURE_WEBRENDER &&
+               nsCocoaFeatures::ProcessIsRosettaTranslated()) {
+      *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+      aFailureId = "FEATURE_UNQUALIFIED_WEBRENDER_MAC_ROSETTA";
+      return NS_OK;
+    }
+  }
+
+  return GfxInfoBase::GetFeatureStatusImpl(
+      aFeature, aStatus, aSuggestedDriverVersion, aDriverInfo, aFailureId, &os);
+}
+
+#ifdef DEBUG
+
+// Implement nsIGfxInfoDebug
+
+/* void spoofVendorID (in DOMString aVendorID); */
+NS_IMETHODIMP GfxInfo::SpoofVendorID(const nsAString& aVendorID) {
+  mAdapterVendorID[0] = aVendorID;
+  return NS_OK;
+}
+
+/* void spoofDeviceID (in unsigned long aDeviceID); */
+NS_IMETHODIMP GfxInfo::SpoofDeviceID(const nsAString& aDeviceID) {
+  mAdapterDeviceID[0] = aDeviceID;
+  return NS_OK;
+}
+
+/* void spoofDriverVersion (in DOMString aDriverVersion); */
+NS_IMETHODIMP GfxInfo::SpoofDriverVersion(const nsAString& aDriverVersion) {
+  mDriverVersion[0] = aDriverVersion;
+  return NS_OK;
+}
+
+/* void spoofOSVersion (in unsigned long aVersion); */
+NS_IMETHODIMP GfxInfo::SpoofOSVersion(uint32_t aVersion) {
+  mOSXVersion = aVersion;
+  return NS_OK;
+}
+
+#endif