Add PlatformLocalFrame class.

third_party/WebKit/Source/core/svg/graphics/SVGImageChromeClient.h

 /*
  * Copyright (C) 2012 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 38 matching lines @@
 
   void SuspendAnimation();
   void ResumeAnimation();
   bool IsSuspended() const { return timeline_state_ >= kSuspended; }
 
  private:
   explicit SVGImageChromeClient(SVGImage*);
 
   void ChromeDestroyed() override;
   void InvalidateRect(const IntRect&) override;
-  void ScheduleAnimation(LocalFrame*) override;
+  void ScheduleAnimation(const PlatformLocalFrame*) override;
 
   void SetTimer(std::unique_ptr<TimerBase>);
   void AnimationTimerFired(TimerBase*);
 
   SVGImage* image_;
   std::unique_ptr<TimerBase> animation_timer_;
   enum {
     kRunning,
     kSuspended,
     kSuspendedWithAnimationPending,
   } timeline_state_;
 
   FRIEND_TEST_ALL_PREFIXES(SVGImageTest, TimelineSuspendAndResume);
   FRIEND_TEST_ALL_PREFIXES(SVGImageTest, ResetAnimation);
 };
 
 DEFINE_TYPE_CASTS(SVGImageChromeClient,
                   ChromeClient,
                   client,
                   client->IsSVGImageChromeClient(),
                   client.IsSVGImageChromeClient());
 
 }  // namespace blink
 
 #endif  // SVGImageChromeClient_h