Refactor Timer classes in preparation for landing FrameTimers.

third_party/WebKit/Source/core/loader/TextTrackLoader.cpp

 /*
  * Copyright (C) 2011 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 32 matching lines @@
     , m_cueLoadTimer(this, &TextTrackLoader::cueLoadTimerFired)
     , m_state(Idle)
     , m_newCuesAvailable(false)
 {
 }
 
 TextTrackLoader::~TextTrackLoader()
 {
 }
 
-void TextTrackLoader::cueLoadTimerFired(Timer<TextTrackLoader>* timer)
+void TextTrackLoader::cueLoadTimerFired(TimerBase* timer)
 {
     ASSERT_UNUSED(timer, timer == &m_cueLoadTimer);
 
     if (m_newCuesAvailable) {
         m_newCuesAvailable = false;
         m_client->newCuesAvailable(this);
     }
 
     if (m_state >= Finished)
         m_client->cueLoadingCompleted(this, m_state == Failed);
@@ skipping 99 matching lines @@
 DEFINE_TRACE(TextTrackLoader)
 {
     visitor->trace(m_client);
     visitor->trace(m_cueParser);
     visitor->trace(m_document);
     ResourceOwner<RawResource>::trace(visitor);
     VTTParserClient::trace(visitor);
 }
 
 } // namespace blink