Refactor Timer classes in preparation for landing FrameTimers.

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 520 matching lines @@
         if (m_derefElementTimer.isActive())
             m_derefElementTimer.stop();
         else
             m_keepAlive = m_element;
     } else {
         ASSERT(!m_derefElementTimer.isActive());
         m_derefElementTimer.startOneShot(0, BLINK_FROM_HERE);
     }
 }
 
-void ImageLoader::timerFired(Timer<ImageLoader>*)
+void ImageLoader::timerFired(TimerBase*)
 {
     m_keepAlive.clear();
 }
 
 void ImageLoader::dispatchPendingEvent(ImageEventSender* eventSender)
 {
     WTF_LOG(ResourceLoading, "ImageLoader::dispatchPendingEvent %p", this);
     ASSERT(eventSender == &loadEventSender() || eventSender == &errorEventSender());
     const AtomicString& eventType = eventSender->eventType();
     if (eventType == EventTypeNames::load)
@@ skipping 52 matching lines @@
 
 void ImageLoader::elementDidMoveToNewDocument()
 {
     if (m_loadDelayCounter)
         m_loadDelayCounter->documentChanged(m_element->document());
     clearFailedLoadURL();
     setImage(0);
 }
 
 } // namespace blink