Don't run paused animations on the compositor.

Source/core/animation/Player.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 69 matching lines @@
     if (isNull(m_startTime))
         return 0;
     return (effectiveTime(m_timeline.currentTime()) - startTime()) * m_playbackRate;
 }
 
 bool Player::maybeStartAnimationOnCompositor()
 {
     // FIXME: Support starting compositor animations that have a fixed
     // start time.
     ASSERT(!hasStartTime());
-    if (!m_content || !m_content->isAnimation())
+    if (!m_content || !m_content->isAnimation() || paused())
         return false;
 
     return toAnimation(m_content.get())->maybeStartAnimationOnCompositor();
 }
 
 bool Player::hasActiveAnimationsOnCompositor()
 {
     if (!m_content || !m_content->isAnimation())
         return false;
     return toAnimation(m_content.get())->hasActiveAnimationsOnCompositor();
@@ skipping 94 matching lines @@
 }
 
 void Player::setPlaybackRate(double newRate)
 {
     double previousTime = currentTime();
     m_playbackRate = newRate;
     setCurrentTime(previousTime);
 }
 
 } // namespace