Web Animations: Implement CSS Animation events

Source/core/animation/DocumentTimeline.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 53 matching lines @@
 {
     m_currentTime = monotonicAnimationStartTime;
 
     for (int i = m_players.size() - 1; i >= 0; --i) {
         if (!m_players[i]->update())
             m_players.remove(i);
     }
 
     if (m_document->view() && !m_players.isEmpty())
         m_document->view()->scheduleAnimation();
+
+    dispatchEvents();
 }
 
 void DocumentTimeline::pauseAnimationsForTesting(double pauseTime)
 {
     for (size_t i = 0; i < m_players.size(); i++) {
         m_players[i]->setPaused(true);
         m_players[i]->setCurrentTime(pauseTime);
     }
 }
 
+void DocumentTimeline::dispatchEvents()
+{
+    for (size_t i = 0; i < m_events.size(); i++)
+        m_events[i].target->dispatchEvent(m_events[i].event.release());
+    m_events.clear();
+}
+
 } // namespace