diff -r 000000000000 -r 6474c204b198 widget/gonk/GfxInfo.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widget/gonk/GfxInfo.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,202 @@
+/* -*- 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"
+
+using namespace mozilla::widget;
+
+/* 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;
+}
+
+/* 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)
+{
+  return NS_ERROR_FAILURE;
+}
+
+/* readonly attribute DOMString adapterRAM; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterRAM(nsAString & aAdapterRAM)
+{
+  aAdapterRAM.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterRAM2; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterRAM2(nsAString & aAdapterRAM)
+{
+  return NS_ERROR_FAILURE;
+}
+
+/* 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)
+{
+  return NS_ERROR_FAILURE;
+}
+
+/* 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)
+{
+  return NS_ERROR_FAILURE;
+}
+
+/* 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)
+{
+  return NS_ERROR_FAILURE;
+}
+
+/* readonly attribute DOMString adapterVendorID; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterVendorID(nsAString & aAdapterVendorID)
+{
+  aAdapterVendorID.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterVendorID2; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterVendorID2(nsAString & aAdapterVendorID)
+{
+  return NS_ERROR_FAILURE;
+}
+
+/* readonly attribute DOMString adapterDeviceID; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDeviceID(nsAString & aAdapterDeviceID)
+{
+  aAdapterDeviceID.AssignLiteral("");
+  return NS_OK;
+}
+
+/* readonly attribute DOMString adapterDeviceID2; */
+NS_IMETHODIMP
+GfxInfo::GetAdapterDeviceID2(nsAString & aAdapterDeviceID)
+{
+  return NS_ERROR_FAILURE;
+}
+
+/* readonly attribute boolean isGPU2Active; */
+NS_IMETHODIMP
+GfxInfo::GetIsGPU2Active(bool* aIsGPU2Active)
+{
+  return NS_ERROR_FAILURE;
+}
+
+const nsTArray<GfxDriverInfo>&
+GfxInfo::GetGfxDriverInfo()
+{
+  return *mDriverInfo;
+}
+
+uint32_t GfxInfo::OperatingSystemVersion()
+{
+  return 0;
+}
+
+nsresult
+GfxInfo::GetFeatureStatusImpl(int32_t /*aFeature*/, 
+                              int32_t *aStatus, 
+                              nsAString & /*aSuggestedDriverVersion*/,
+                              const nsTArray<GfxDriverInfo>& /*aDriverInfo*/, 
+                              OperatingSystem* /*aOS*/ /* = nullptr */)
+{
+  NS_ENSURE_ARG_POINTER(aStatus);
+  *aStatus = nsIGfxInfo::FEATURE_NO_INFO;
+
+  return NS_OK;
+}
+
+#ifdef DEBUG
+
+// Implement nsIGfxInfoDebug
+
+/* void spoofVendorID (in DOMString aVendorID); */
+NS_IMETHODIMP GfxInfo::SpoofVendorID(const nsAString &)
+{
+  return NS_OK;
+}
+
+/* void spoofDeviceID (in unsigned long aDeviceID); */
+NS_IMETHODIMP GfxInfo::SpoofDeviceID(const nsAString &)
+{
+  return NS_OK;
+}
+
+/* void spoofDriverVersion (in DOMString aDriverVersion); */
+NS_IMETHODIMP GfxInfo::SpoofDriverVersion(const nsAString &)
+{
+  return NS_OK;
+}
+
+/* void spoofOSVersion (in unsigned long aVersion); */
+NS_IMETHODIMP GfxInfo::SpoofOSVersion(uint32_t)
+{
+  return NS_OK;
+}
+
+#endif