Implement API for accessing fonts installed locally on the system.

content/renderer/renderer_blink_platform_impl.h

Index: content/renderer/renderer_blink_platform_impl.h
diff --git a/content/renderer/renderer_blink_platform_impl.h b/content/renderer/renderer_blink_platform_impl.h
index 03b7aa2aedf2001a0cbf975ea8b766da4f6b5136..402d1c22af71515f2e7164577069a41d5687aa32 100644
--- a/content/renderer/renderer_blink_platform_impl.h
+++ b/content/renderer/renderer_blink_platform_impl.h
@@ -40,6 +40,7 @@ class WebMediaPlayer;
 class WebMediaRecorderHandler;
 class WebMediaStream;
 class WebServiceWorkerCacheStorage;
+class WebFontAccess;
 }
 
 namespace scheduler {
@@ -129,6 +130,7 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
   size_t audioHardwareBufferSize() override;
   unsigned audioHardwareOutputChannels() override;
   blink::WebDatabaseObserver* databaseObserver() override;
+  blink::WebFontAccess* fontAccess() override;
 
   blink::WebAudioDevice* createAudioDevice(
       size_t buffer_size,
@@ -289,6 +291,8 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
 
   scoped_ptr<BatteryStatusDispatcher> battery_status_dispatcher_;
 
+  scoped_ptr<blink::WebFontAccess> web_font_access_;
+
   // Handle to the Vibration mojo service.
   device::VibrationManagerPtr vibration_manager_;