Refactor Timer classes in preparation for landing FrameTimers.

third_party/WebKit/Source/core/html/shadow/MediaControlElements.h

 /*
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Google 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.
@@ skipping 37 matching lines @@
     void makeTransparent();
 
 private:
     explicit MediaControlPanelElement(MediaControls&);
 
     void defaultEventHandler(Event*) override;
     bool keepEventInNode(Event*) override;
 
     void startTimer();
     void stopTimer();
-    void transitionTimerFired(Timer<MediaControlPanelElement>*);
+    void transitionTimerFired(TimerBase*);
     void didBecomeVisible();
 
     bool m_isDisplayed;
     bool m_opaque;
 
     Timer<MediaControlPanelElement> m_transitionTimer;
 };
 
 // ----------------------------
 
@@ skipping 211 matching lines @@
 public:
     static MediaControlCurrentTimeDisplayElement* create(MediaControls&);
 
 private:
     explicit MediaControlCurrentTimeDisplayElement(MediaControls&);
 };
 
 } // namespace blink
 
 #endif // MediaControlElements_h