Clear need for animation style for forced styleForElement.

Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 3350 matching lines @@
     // Turn off style sharing for elements that can gain layers for reasons outside of the style system.
     // See comments in LayoutObject::setStyle().
     // FIXME: Why does gaining a layer from outside the style system require disabling sharing?
     if (isHTMLFrameElementBase(*this) || isHTMLPlugInElement(*this) || isHTMLCanvasElement(*this))
         return false;
     if (Fullscreen::isActiveFullScreenElement(*this))
         return false;
     return true;
 }
 
+void Element::clearAnimationStyleChange()
+{
+    if (!hasRareData())
+        return;
+    if (ElementAnimations* elementAnimations = elementRareData()->elementAnimations())

[dstockwell, 2015/03/18 11:05:54]

there's an elementAnimations() getter on this

[rune, 2015/03/18 14:53:03]

Done.

+        elementAnimations->setAnimationStyleChange(false);
+}
+
 DEFINE_TRACE(Element)
 {
 #if ENABLE(OILPAN)
     if (hasRareData())
         visitor->trace(elementRareData());
     visitor->trace(m_elementData);
 #endif
     ContainerNode::trace(visitor);
 }
 
 } // namespace blink