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 72fda4f9df25ca5d506c6e96e6b82e4ddd603cfd..2c834c71a3bfa5b5c21ad6111f3f41cb7b595fab 100644
--- a/content/renderer/renderer_blink_platform_impl.h
+++ b/content/renderer/renderer_blink_platform_impl.h
@@ -39,6 +39,7 @@ class WebGraphicsContext3DProvider;
 class WebMediaRecorderHandler;
 class WebMediaStream;
 class WebServiceWorkerCacheStorage;
+class WebFontAccess;
 }
 
 namespace scheduler {
@@ -127,6 +128,7 @@ 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,
@@ -284,6 +286,8 @@ 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_;