Refactor Timer classes in preparation for landing FrameTimers.

third_party/WebKit/Source/platform/graphics/BitmapImage.cpp

 /*
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2008 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 546 matching lines @@
 }
 
 void BitmapImage::advanceTime(double deltaTimeInSeconds)
 {
     if (m_desiredFrameStartTime)
         m_desiredFrameStartTime -= deltaTimeInSeconds;
     else
         m_desiredFrameStartTime = monotonicallyIncreasingTime() - deltaTimeInSeconds;
 }
 
-void BitmapImage::advanceAnimation(Timer<BitmapImage>*)
+void BitmapImage::advanceAnimation(TimerBase*)
 {
     internalAdvanceAnimation(false);
     // At this point the image region has been marked dirty, and if it's
     // onscreen, we'll soon make a call to draw(), which will call
     // startAnimation() again to keep the animation moving.
 }
 
-void BitmapImage::advanceAnimationWithoutCatchUp(Timer<BitmapImage>*)
+void BitmapImage::advanceAnimationWithoutCatchUp(TimerBase*)
 {
     if (internalAdvanceAnimation(false))
         startAnimation(DoNotCatchUp);
 }
 
 bool BitmapImage::internalAdvanceAnimation(bool skippingFrames)
 {
     // Stop the animation.
     stopAnimation();
 
@@ skipping 24 matching lines @@
 
     // We need to draw this frame if we advanced to it while not skipping, or if
     // while trying to skip frames we hit the last frame and thus had to stop.
     if (skippingFrames != advancedAnimation)
         getImageObserver()->animationAdvanced(this);
 
     return advancedAnimation;
 }
 
 } // namespace blink