Implement API for accessing fonts installed locally on the system.

third_party/WebKit/public/platform/Platform.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 56 matching lines @@
 class WebConvertableToTraceFormat;
 class WebCookieJar;
 class WebCrypto;
 class WebDatabaseObserver;
 class WebDiscardableMemory;
 class WebPlatformEventListener;
 class WebFallbackThemeEngine;
 class WebFileSystem;
 class WebFileUtilities;
 class WebFlingAnimator;
+class WebFontAccess;
 class WebGeofencingProvider;
 class WebGestureCurve;
 class WebGraphicsContext3DProvider;
 class WebIDBFactory;
 class WebMIDIAccessor;
 class WebMIDIAccessorClient;
 class WebMediaRecorderHandler;
 class WebMediaStreamCenter;
 class WebMediaStreamCenterClient;
 class WebMediaStreamTrack;
@@ skipping 650 matching lines @@
 
     // Permissions --------------------------------------------------------
 
     virtual WebPermissionClient* permissionClient() { return nullptr; }
 
 
     // Background Sync API------------------------------------------------------------
 
     virtual WebSyncProvider* backgroundSyncProvider() { return nullptr; }
 
+    virtual WebFontAccess* fontAccess() { return nullptr; }
+
 protected:
     BLINK_PLATFORM_EXPORT Platform();
     virtual ~Platform() { }
 
     WebThread* m_mainThread;
 };
 
 } // namespace blink
 
 #endif