Refactor Timer classes in preparation for landing FrameTimers.

third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.h

 /*
  * Copyright (C) 2006, 2007, 2009, 2010, 2011, 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 157 matching lines @@
 
     bool isAccelerationOptimalForCanvasContent() const;
 
 private:
     friend class CanvasRenderingContext2DAutoRestoreSkCanvas;
 
     CanvasRenderingContext2D(HTMLCanvasElement*, const CanvasContextCreationAttributes& attrs, Document&);
 
     void dispose();
 
-    void dispatchContextLostEvent(Timer<CanvasRenderingContext2D>*);
-    void dispatchContextRestoredEvent(Timer<CanvasRenderingContext2D>*);
-    void tryRestoreContextEvent(Timer<CanvasRenderingContext2D>*);
+    void dispatchContextLostEvent(TimerBase*);
+    void dispatchContextRestoredEvent(TimerBase*);
+    void tryRestoreContextEvent(TimerBase*);
 
     void unwindStateStack();
 
     void pruneLocalFontCache(size_t targetSize);
     void schedulePruneLocalFontCacheIfNeeded();
 
     void scrollPathIntoViewInternal(const Path&);
 
     void drawTextInternal(const String&, double x, double y, CanvasRenderingContext2DState::PaintType, double* maxWidth = nullptr);
 
@@ skipping 29 matching lines @@
     HashMap<String, Font> m_fontsResolvedUsingCurrentStyle;
     bool m_pruneLocalFontCacheScheduled;
     ListHashSet<String> m_fontLRUList;
 };
 
 DEFINE_TYPE_CASTS(CanvasRenderingContext2D, CanvasRenderingContext, context, context->is2d(), context.is2d());
 
 } // namespace blink
 
 #endif // CanvasRenderingContext2D_h