Refactor Timer classes in preparation for landing FrameTimers.

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 40 matching lines @@
     void resumeAnimation();
     bool isSuspended() const { return m_timelineState >= Suspended; }
 
 private:
     explicit SVGImageChromeClient(SVGImage*);
 
     void chromeDestroyed() override;
     void invalidateRect(const IntRect&) override;
     void scheduleAnimation(Widget*) override;
 
-    void setTimer(Timer<SVGImageChromeClient>*);
-    void animationTimerFired(Timer<SVGImageChromeClient>*);
+    void setTimer(TaskRunnerTimer<SVGImageChromeClient>*);
+    void animationTimerFired(TimerBase*);
 
     SVGImage* m_image;
-    std::unique_ptr<Timer<SVGImageChromeClient>> m_animationTimer;
+    std::unique_ptr<TaskRunnerTimer<SVGImageChromeClient>> m_animationTimer;

[haraken, 2016/07/28 14:44:46]

Yeah, this looks ugly...

     enum {
         Running,
         Suspended,
         SuspendedWithAnimationPending,
     } m_timelineState;
 
     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