Clear need for animation style for forced styleForElement.

Source/core/dom/Element.cpp

Index: Source/core/dom/Element.cpp
diff --git a/Source/core/dom/Element.cpp b/Source/core/dom/Element.cpp
index 2607f8068404cfcac097b193fdb630258c627a04..18133ac0d767b5ce1804f7f8efeaedc552a7475d 100644
--- a/Source/core/dom/Element.cpp
+++ b/Source/core/dom/Element.cpp
@@ -3368,6 +3368,14 @@ bool Element::supportsStyleSharing() const
     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)