Web Animations: Add an event delegate to allow different forms of event dispatch

Source/core/animation/Animation.cpp

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 25 matching lines @@
 #include "core/dom/Element.h"
 
 namespace WebCore {
 
 PassRefPtr<Animation> Animation::create(PassRefPtr<Element> target, PassRefPtr<AnimationEffect> effect, const Timing& timing)
 {
     return adoptRef(new Animation(target, effect, timing));
 }
 
 Animation::Animation(PassRefPtr<Element> target, PassRefPtr<AnimationEffect> effect, const Timing& timing)
-    : TimedItem(timing)
+    : TimedItem(timing, nullptr)

[pdr., 2013/08/01 21:11:16]

Would it be useful to change the TimedItem to use a default value of nullptr for
the event delegate?

[dstockwell, 2013/08/02 00:23:26]

Done.

     , m_target(target)
     , m_effect(effect)
     , m_activeInAnimationStack(false)
 {
 }
 
 void Animation::willDetach()
 {
     if (m_activeInAnimationStack)
         clearEffects();
@@ skipping 27 matching lines @@
 void Animation::updateChildrenAndEffects(bool wasInEffect) const
 {
     ASSERT(m_activeInAnimationStack == wasInEffect);
     if (isInEffect())
         const_cast<Animation*>(this)->applyEffects(wasInEffect);
     else if (wasInEffect)
         const_cast<Animation*>(this)->clearEffects();
 }
 
 } // namespace WebCore