The Tor Browser: widget/android/GfxInfo.cpp@b8a032363ba2 (annotated)

widget/android/GfxInfo.cpp@b8a032363ba2 (annotated)

widget/android/GfxInfo.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* -*- 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 "GfxInfo.h"
 #include "GLContext.h"
 #include "GLContextProvider.h"
 #include "nsUnicharUtils.h"
 #include "prenv.h"
 #include "prprf.h"
 #include "nsHashKeys.h"
 #include "nsVersionComparator.h"
 #include "AndroidBridge.h"
 #include "nsIWindowWatcher.h"
 #include "nsServiceManagerUtils.h"
 #if defined(MOZ_CRASHREPORTER)
 #include "nsExceptionHandler.h"
 #include "nsICrashReporter.h"
 #define NS_CRASHREPORTER_CONTRACTID "@mozilla.org/toolkit/crash-reporter;1"
 #endif
 namespace mozilla {
 namespace widget {
 class GfxInfo::GLStrings
 {
   nsCString mVendor;
   nsCString mRenderer;
   nsCString mVersion;
   bool mReady;
 public:
   GLStrings()
     : mReady(false)
   {}
   const nsCString& Vendor() {
     EnsureInitialized();
     return mVendor;
   }
   void SpoofVendor(const nsCString& s) {
     EnsureInitialized();
     mVendor = s;
   }
   const nsCString& Renderer() {
     EnsureInitialized();
     return mRenderer;
   }
   void SpoofRenderer(const nsCString& s) {
     EnsureInitialized();
     mRenderer = s;
   }
   const nsCString& Version() {
     EnsureInitialized();
     return mVersion;
   }
   void SpoofVersion(const nsCString& s) {
     EnsureInitialized();
     mVersion = s;
   }
   void EnsureInitialized() {
     if (mReady) {
       return;
     }
     nsRefPtr<gl::GLContext> gl = gl::GLContextProvider::CreateOffscreen(
       gfxIntSize(16, 16),
       gfx::SurfaceCaps::ForRGB());
     if (!gl) {
       // Setting mReady to true here means that we won't retry. Everything will
       // remain blacklisted forever. Ideally, we would like to update that once
       // any GLContext is successfully created, like the compositor's GLContext.
       mReady = true;
       return;
     }
     gl->MakeCurrent();
     const char *spoofedVendor = PR_GetEnv("MOZ_GFX_SPOOF_GL_VENDOR");
     if (spoofedVendor)
         mVendor.Assign(spoofedVendor);
     else
         mVendor.Assign((const char*)gl->fGetString(LOCAL_GL_VENDOR));
     const char *spoofedRenderer = PR_GetEnv("MOZ_GFX_SPOOF_GL_RENDERER");
     if (spoofedRenderer)
         mRenderer.Assign(spoofedRenderer);
     else
         mRenderer.Assign((const char*)gl->fGetString(LOCAL_GL_RENDERER));
     const char *spoofedVersion = PR_GetEnv("MOZ_GFX_SPOOF_GL_VERSION");
     if (spoofedVersion)
         mVersion.Assign(spoofedVersion);
     else
         mVersion.Assign((const char*)gl->fGetString(LOCAL_GL_VERSION));
     mReady = true;
   }
 };
 #ifdef DEBUG
 NS_IMPL_ISUPPORTS_INHERITED(GfxInfo, GfxInfoBase, nsIGfxInfoDebug)
 #endif
 GfxInfo::GfxInfo()
   : mInitialized(false)
   , mGLStrings(new GLStrings)
 {
 }
 /* GetD2DEnabled and GetDwriteEnabled shouldn't be called until after gfxPlatform initialization
  * has occurred because they depend on it for information. (See bug 591561) */
 nsresult
 GfxInfo::GetD2DEnabled(bool *aEnabled)
 {
   return NS_ERROR_FAILURE;
 }
 nsresult
 GfxInfo::GetDWriteEnabled(bool *aEnabled)
 {
   return NS_ERROR_FAILURE;
 }
 /* readonly attribute DOMString DWriteVersion; */
 NS_IMETHODIMP
 GfxInfo::GetDWriteVersion(nsAString & aDwriteVersion)
 {
   return NS_ERROR_FAILURE;
 }
 /* readonly attribute DOMString cleartypeParameters; */
 NS_IMETHODIMP
 GfxInfo::GetCleartypeParameters(nsAString & aCleartypeParams)
 {
   return NS_ERROR_FAILURE;
 }
 void
 GfxInfo::EnsureInitialized()
 {
   if (mInitialized)
     return;
   mGLStrings->EnsureInitialized();
   MOZ_ASSERT(mozilla::AndroidBridge::Bridge());
   if (mozilla::AndroidBridge::Bridge()->GetStaticStringField("android/os/Build", "MODEL", mModel)) {
     mAdapterDescription.AppendPrintf("Model: %s",  NS_LossyConvertUTF16toASCII(mModel).get());
   }
   if (mozilla::AndroidBridge::Bridge()->GetStaticStringField("android/os/Build", "PRODUCT", mProduct)) {
     mAdapterDescription.AppendPrintf(", Product: %s", NS_LossyConvertUTF16toASCII(mProduct).get());
   }
   if (mozilla::AndroidBridge::Bridge()->GetStaticStringField("android/os/Build", "MANUFACTURER", mManufacturer)) {
     mAdapterDescription.AppendPrintf(", Manufacturer: %s", NS_LossyConvertUTF16toASCII(mManufacturer).get());
   }
   int32_t sdkVersion;
   if (!mozilla::AndroidBridge::Bridge()->GetStaticIntField("android/os/Build$VERSION", "SDK_INT", &sdkVersion))
     sdkVersion = 0;
   // the HARDWARE field isn't available on Android SDK < 8
   if (sdkVersion >= 8 && mozilla::AndroidBridge::Bridge()->GetStaticStringField("android/os/Build", "HARDWARE", mHardware)) {
     mAdapterDescription.AppendPrintf(", Hardware: %s", NS_LossyConvertUTF16toASCII(mHardware).get());
   }
   nsString release;
   mozilla::AndroidBridge::Bridge()->GetStaticStringField("android/os/Build$VERSION", "RELEASE", release);
   mOSVersion = NS_LossyConvertUTF16toASCII(release);
   mOSVersionInteger = 0;
   char a[5], b[5], c[5], d[5];
   SplitDriverVersion(mOSVersion.get(), a, b, c, d);
   uint8_t na = atoi(a);
   uint8_t nb = atoi(b);
   uint8_t nc = atoi(c);
   uint8_t nd = atoi(d);
   mOSVersionInteger = (uint32_t(na) << 24) |
                       (uint32_t(nb) << 16) |
                       (uint32_t(nc) << 8)  |
                       uint32_t(nd);
   mAdapterDescription.AppendPrintf(", OpenGL: %s -- %s -- %s",
                                    mGLStrings->Vendor().get(),
                                    mGLStrings->Renderer().get(),
                                    mGLStrings->Version().get());
   AddCrashReportAnnotations();
   mInitialized = true;
 }
 /* readonly attribute DOMString adapterDescription; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDescription(nsAString & aAdapterDescription)
 {
   EnsureInitialized();
   aAdapterDescription = NS_ConvertASCIItoUTF16(mAdapterDescription);
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDescription2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDescription2(nsAString & aAdapterDescription)
 {
   EnsureInitialized();
   return NS_ERROR_FAILURE;
 }
 /* readonly attribute DOMString adapterRAM; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterRAM(nsAString & aAdapterRAM)
 {
   EnsureInitialized();
   aAdapterRAM.AssignLiteral("");
   return NS_OK;
 }
 /* readonly attribute DOMString adapterRAM2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterRAM2(nsAString & aAdapterRAM)
 {
   EnsureInitialized();
   return NS_ERROR_FAILURE;
 }
 /* readonly attribute DOMString adapterDriver; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDriver(nsAString & aAdapterDriver)
 {
   EnsureInitialized();
   aAdapterDriver.AssignLiteral("");
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDriver2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDriver2(nsAString & aAdapterDriver)
 {
   EnsureInitialized();
   return NS_ERROR_FAILURE;
 }
 /* readonly attribute DOMString adapterDriverVersion; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDriverVersion(nsAString & aAdapterDriverVersion)
 {
   EnsureInitialized();
   aAdapterDriverVersion = NS_ConvertASCIItoUTF16(mGLStrings->Version());
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDriverVersion2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDriverVersion2(nsAString & aAdapterDriverVersion)
 {
   EnsureInitialized();
   return NS_ERROR_FAILURE;
 }
 /* readonly attribute DOMString adapterDriverDate; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDriverDate(nsAString & aAdapterDriverDate)
 {
   EnsureInitialized();
   aAdapterDriverDate.AssignLiteral("");
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDriverDate2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDriverDate2(nsAString & aAdapterDriverDate)
 {
   EnsureInitialized();
   return NS_ERROR_FAILURE;
 }
 /* readonly attribute DOMString adapterVendorID; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterVendorID(nsAString & aAdapterVendorID)
 {
   EnsureInitialized();
   aAdapterVendorID = NS_ConvertASCIItoUTF16(mGLStrings->Vendor());
   return NS_OK;
 }
 /* readonly attribute DOMString adapterVendorID2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterVendorID2(nsAString & aAdapterVendorID)
 {
   EnsureInitialized();
   return NS_ERROR_FAILURE;
 }
 /* readonly attribute DOMString adapterDeviceID; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDeviceID(nsAString & aAdapterDeviceID)
 {
   EnsureInitialized();
   aAdapterDeviceID = NS_ConvertASCIItoUTF16(mGLStrings->Renderer());
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDeviceID2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDeviceID2(nsAString & aAdapterDeviceID)
 {
   EnsureInitialized();
   return NS_ERROR_FAILURE;
 }
 /* readonly attribute boolean isGPU2Active; */
 NS_IMETHODIMP
 GfxInfo::GetIsGPU2Active(bool* aIsGPU2Active)
 {
   EnsureInitialized();
   return NS_ERROR_FAILURE;
 }
 void
 GfxInfo::AddCrashReportAnnotations()
 {
 #if defined(MOZ_CRASHREPORTER)
   CrashReporter::AnnotateCrashReport(NS_LITERAL_CSTRING("AdapterVendorID"),
                                      mGLStrings->Vendor());
   CrashReporter::AnnotateCrashReport(NS_LITERAL_CSTRING("AdapterDeviceID"),
                                      mGLStrings->Renderer());
   /* Add an App Note for now so that we get the data immediately. These
    * can go away after we store the above in the socorro db */
   nsAutoCString note;
   note.AppendPrintf("AdapterDescription: '%s'\n", mAdapterDescription.get());
   CrashReporter::AppendAppNotesToCrashReport(note);
 #endif
 }
 const nsTArray<GfxDriverInfo>&
 GfxInfo::GetGfxDriverInfo()
 {
   if (mDriverInfo->IsEmpty()) {
     APPEND_TO_DRIVER_BLOCKLIST2( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorAll), GfxDriverInfo::allDevices,
       nsIGfxInfo::FEATURE_OPENGL_LAYERS, nsIGfxInfo::FEATURE_NO_INFO,
       DRIVER_COMPARISON_IGNORED, GfxDriverInfo::allDriverVersions );
   }
   return *mDriverInfo;
 }
 nsresult
 GfxInfo::GetFeatureStatusImpl(int32_t aFeature,
                               int32_t *aStatus,
                               nsAString & aSuggestedDriverVersion,
                               const nsTArray<GfxDriverInfo>& aDriverInfo,
                               OperatingSystem* aOS /* = nullptr */)
 {
   NS_ENSURE_ARG_POINTER(aStatus);
   aSuggestedDriverVersion.SetIsVoid(true);
   *aStatus = nsIGfxInfo::FEATURE_STATUS_UNKNOWN;
   OperatingSystem os = mOS;
   if (aOS)
     *aOS = os;
   // OpenGL layers are never blacklisted on Android.
   // This early return is so we avoid potentially slow
   // GLStrings initialization on startup when we initialize GL layers.
   if (aFeature == nsIGfxInfo::FEATURE_OPENGL_LAYERS) {
     *aStatus = nsIGfxInfo::FEATURE_NO_INFO;
     return NS_OK;
   }
   EnsureInitialized();
   if (mGLStrings->Vendor().IsEmpty() || mGLStrings->Renderer().IsEmpty()) {
     *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
     return NS_OK;
   }
   // Don't evaluate special cases when evaluating the downloaded blocklist.
   if (aDriverInfo.IsEmpty()) {
     if (aFeature == FEATURE_WEBGL_OPENGL) {
       if (mGLStrings->Renderer().Find("Adreno 200") != -1 ||
           mGLStrings->Renderer().Find("Adreno 205") != -1)
       {
         *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
         return NS_OK;
       }
       if (mHardware.Equals(NS_LITERAL_STRING("ville"))) {
         *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
         return NS_OK;
       }
     }
     if (aFeature == FEATURE_STAGEFRIGHT) {
       NS_LossyConvertUTF16toASCII cManufacturer(mManufacturer);
       NS_LossyConvertUTF16toASCII cModel(mModel);
       NS_LossyConvertUTF16toASCII cHardware(mHardware);
       if (cHardware.Equals("antares") ||
           cHardware.Equals("harmony") ||
           cHardware.Equals("picasso") ||
           cHardware.Equals("picasso_e") ||
           cHardware.Equals("ventana") ||
           cHardware.Equals("rk30board"))
       {
         *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
         return NS_OK;
       }
       if (CompareVersions(mOSVersion.get(), "2.2.0") >= 0 &&
           CompareVersions(mOSVersion.get(), "2.3.0") < 0)
       {
         // Froyo LG devices are whitelisted.
         // All other Froyo
         bool isWhitelisted =
           cManufacturer.Equals("lge", nsCaseInsensitiveCStringComparator());
         if (!isWhitelisted) {
           *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
           return NS_OK;
         }
       }
       else if (CompareVersions(mOSVersion.get(), "2.3.0") >= 0 &&
           CompareVersions(mOSVersion.get(), "2.4.0") < 0)
       {
         // Gingerbread HTC devices are whitelisted.
         // Gingerbread Samsung devices are whitelisted except for:
         //   Samsung devices identified in Bug 847837
         // Gingerbread Sony devices are whitelisted.
         // All other Gingerbread devices are blacklisted.
         bool isWhitelisted =
           cManufacturer.Equals("htc", nsCaseInsensitiveCStringComparator()) ||
           (cManufacturer.Find("sony", true) != -1) ||
           cManufacturer.Equals("samsung", nsCaseInsensitiveCStringComparator());
         if (cModel.Equals("GT-I8160", nsCaseInsensitiveCStringComparator()) ||
             cModel.Equals("GT-I8160L", nsCaseInsensitiveCStringComparator()) ||
             cModel.Equals("GT-I8530", nsCaseInsensitiveCStringComparator()) ||
             cModel.Equals("GT-I9070", nsCaseInsensitiveCStringComparator()) ||
             cModel.Equals("GT-I9070P", nsCaseInsensitiveCStringComparator()) ||
             cModel.Equals("GT-I8160P", nsCaseInsensitiveCStringComparator()) ||
             cModel.Equals("GT-S7500", nsCaseInsensitiveCStringComparator()) ||
             cModel.Equals("GT-S7500T", nsCaseInsensitiveCStringComparator()) ||
             cModel.Equals("GT-S7500L", nsCaseInsensitiveCStringComparator()) ||
             cModel.Equals("GT-S6500T", nsCaseInsensitiveCStringComparator()) ||
             cHardware.Equals("smdkc110", nsCaseInsensitiveCStringComparator()) ||
             cHardware.Equals("smdkc210", nsCaseInsensitiveCStringComparator()) ||
             cHardware.Equals("herring", nsCaseInsensitiveCStringComparator()) ||
             cHardware.Equals("shw-m110s", nsCaseInsensitiveCStringComparator()) ||
             cHardware.Equals("shw-m180s", nsCaseInsensitiveCStringComparator()) ||
             cHardware.Equals("n1", nsCaseInsensitiveCStringComparator()) ||
             cHardware.Equals("latona", nsCaseInsensitiveCStringComparator()) ||
             cHardware.Equals("aalto", nsCaseInsensitiveCStringComparator()) ||
             cHardware.Equals("atlas", nsCaseInsensitiveCStringComparator()) ||
             cHardware.Equals("qcom", nsCaseInsensitiveCStringComparator()))
         {
           isWhitelisted = false;
         }
         if (!isWhitelisted) {
           *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
           return NS_OK;
         }
       }
       else if (CompareVersions(mOSVersion.get(), "3.0.0") >= 0 &&
           CompareVersions(mOSVersion.get(), "4.0.0") < 0)
       {
         // Honeycomb Samsung devices are whitelisted.
         // All other Honeycomb devices are blacklisted.
         bool isWhitelisted =
           cManufacturer.Equals("samsung", nsCaseInsensitiveCStringComparator());
         if (!isWhitelisted) {
           *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
           return NS_OK;
         }
       }
       else if (CompareVersions(mOSVersion.get(), "4.0.0") < 0)
       {
         *aStatus = nsIGfxInfo::FEATURE_BLOCKED_OS_VERSION;
         return NS_OK;
       }
       else if (CompareVersions(mOSVersion.get(), "4.1.0") < 0)
       {
         // Whitelist:
         //   All Samsung ICS devices, except for:
         //     Samsung SGH-I717 (Bug 845729)
         //     Samsung SGH-I727 (Bug 845729)
         //     Samsung SGH-I757 (Bug 845729)
         //   All Galaxy nexus ICS devices
         //   Sony Xperia Ion (LT28) ICS devices
         bool isWhitelisted =
           cModel.Equals("LT28h", nsCaseInsensitiveCStringComparator()) ||
           cManufacturer.Equals("samsung", nsCaseInsensitiveCStringComparator()) ||
           cModel.Equals("galaxy nexus", nsCaseInsensitiveCStringComparator()); // some Galaxy Nexus have manufacturer=amazon
         if (cModel.Find("SGH-I717", true) != -1 ||
             cModel.Find("SGH-I727", true) != -1 ||
             cModel.Find("SGH-I757", true) != -1)
         {
           isWhitelisted = false;
         }
         if (!isWhitelisted) {
           *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
           return NS_OK;
         }
       }
       else if (CompareVersions(mOSVersion.get(), "4.2.0") < 0)
       {
         // Whitelist:
         //   All JB phones except for those in blocklist below
         // Blocklist:
         //   Samsung devices from bug 812881 and 853522.
         //   Motorola XT890 from bug 882342.
         bool isBlocklisted =
           cModel.Find("GT-P3100", true) != -1 ||
           cModel.Find("GT-P3110", true) != -1 ||
           cModel.Find("GT-P3113", true) != -1 ||
           cModel.Find("GT-P5100", true) != -1 ||
           cModel.Find("GT-P5110", true) != -1 ||
           cModel.Find("GT-P5113", true) != -1 ||
           cModel.Find("XT890", true) != -1;
         if (isBlocklisted) {
           *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
           return NS_OK;
         }
       }
       else if (CompareVersions(mOSVersion.get(), "4.3.0") < 0)
       {
         // Blocklist all Sony devices
         if (cManufacturer.Find("Sony", true) != -1) {
           *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
           return NS_OK;
         }
       }
     }
     if (aFeature == FEATURE_WEBRTC_HW_ACCELERATION) {
       NS_LossyConvertUTF16toASCII cManufacturer(mManufacturer);
       NS_LossyConvertUTF16toASCII cModel(mModel);
       NS_LossyConvertUTF16toASCII cHardware(mHardware);
       if (cHardware.Equals("hammerhead") &&
           CompareVersions(mOSVersion.get(), "4.4.2") >= 0 &&
           cManufacturer.Equals("lge", nsCaseInsensitiveCStringComparator()) &&
           cModel.Equals("nexus 5", nsCaseInsensitiveCStringComparator())) {
         *aStatus = nsIGfxInfo::FEATURE_NO_INFO;
         return NS_OK;
       } else {
         // Blocklist all other devices except Nexus 5 which VP8 hardware acceleration is supported
         *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
         return NS_OK;
       }
     }
   }
   return GfxInfoBase::GetFeatureStatusImpl(aFeature, aStatus, aSuggestedDriverVersion, aDriverInfo, &os);
 }
 #ifdef DEBUG
 // Implement nsIGfxInfoDebug
 /* void spoofVendorID (in DOMString aVendorID); */
 NS_IMETHODIMP GfxInfo::SpoofVendorID(const nsAString & aVendorID)
 {
   EnsureInitialized();
   mGLStrings->SpoofVendor(NS_LossyConvertUTF16toASCII(aVendorID));
   return NS_OK;
 }
 /* void spoofDeviceID (in unsigned long aDeviceID); */
 NS_IMETHODIMP GfxInfo::SpoofDeviceID(const nsAString & aDeviceID)
 {
   EnsureInitialized();
   mGLStrings->SpoofRenderer(NS_LossyConvertUTF16toASCII(aDeviceID));
   return NS_OK;
 }
 /* void spoofDriverVersion (in DOMString aDriverVersion); */
 NS_IMETHODIMP GfxInfo::SpoofDriverVersion(const nsAString & aDriverVersion)
 {
   EnsureInitialized();
   mGLStrings->SpoofVersion(NS_LossyConvertUTF16toASCII(aDriverVersion));
   return NS_OK;
 }
 /* void spoofOSVersion (in unsigned long aVersion); */
 NS_IMETHODIMP GfxInfo::SpoofOSVersion(uint32_t aVersion)
 {
   EnsureInitialized();
   mOSVersion = aVersion;
   return NS_OK;
 }
 #endif
 nsString GfxInfo::Model()
 {
   EnsureInitialized();
   return mModel;
 }
 nsString GfxInfo::Hardware()
 {
   EnsureInitialized();
   return mHardware;
 }
 nsString GfxInfo::Product()
 {
   EnsureInitialized();
   return mProduct;
 }
 nsString GfxInfo::Manufacturer()
 {
   EnsureInitialized();
   return mManufacturer;
 }
 uint32_t GfxInfo::OperatingSystemVersion()
 {
   EnsureInitialized();
   return mOSVersionInteger;
 }
 }
 }

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widget/android/GfxInfo.cpp@b8a032363ba2 (annotated)

widget/android/GfxInfo.cpp