Refactor Timer classes in preparation for landing FrameTimers.

third_party/WebKit/Source/modules/encryptedmedia/MediaKeys.cpp

 /*
  * Copyright (C) 2013 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 224 matching lines @@
 bool MediaKeys::sessionTypeSupported(WebEncryptedMediaSessionType sessionType)
 {
     for (size_t i = 0; i < m_supportedSessionTypes.size(); i++) {
         if (m_supportedSessionTypes[i] == sessionType)
             return true;
     }
 
     return false;
 }
 
-void MediaKeys::timerFired(Timer<MediaKeys>*)
+void MediaKeys::timerFired(TimerBase*)
 {
     DCHECK(m_pendingActions.size());
 
     // Swap the queue to a local copy to avoid problems if resolving promises
     // run synchronously.
     HeapDeque<Member<PendingAction>> pendingActions;
     pendingActions.swap(m_pendingActions);
 
     while (!pendingActions.isEmpty()) {
         PendingAction* action = pendingActions.takeFirst();
@@ skipping 45 matching lines @@
 void MediaKeys::stop()
 {
     ActiveDOMObject::stop();
 
     if (m_timer.isActive())
         m_timer.stop();
     m_pendingActions.clear();
 }
 
 } // namespace blink