Add PlatformLocalFrame class.

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

 /*
  * 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 65 matching lines @@
       timeline_state_ == kSuspendedWithAnimationPending;
   timeline_state_ = kRunning;
 
   // If an animation frame was pending/requested while animations were
   // suspended, schedule a new animation frame.
   if (!have_pending_animation)
     return;
   ScheduleAnimation(nullptr);
 }
 
-void SVGImageChromeClient::ScheduleAnimation(LocalFrame*) {
+void SVGImageChromeClient::ScheduleAnimation(const PlatformLocalFrame*) {
   // Because a single SVGImage can be shared by multiple pages, we can't key
   // our svg image layout on the page's real animation frame. Therefore, we
   // run this fake animation timer to trigger layout in SVGImages. The name,
   // "animationTimer", is to match the new requestAnimationFrame-based layout
   // approach.
   if (animation_timer_->IsActive())
     return;
   // Schedule the 'animation' ASAP if the image does not contain any
   // animations, but prefer a fixed, jittery, frame-delay if there're any
   // animations. Checking for pending/active animations could be more
@@ skipping 21 matching lines @@
   //
   // TODO(Oilpan): move (SVG)Image to the Oilpan heap, and avoid
   // this explicit lifetime check.
   if (ThreadHeap::WillObjectBeLazilySwept(image_->GetImageObserver()))
     return;
 
   image_->ServiceAnimations(MonotonicallyIncreasingTime());
 }
 
 }  // namespace blink