RenderStyle operator== incorrect for shape-outside and clip-path.

Source/core/rendering/style/ShapeValue.h

 /*
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 14 matching lines @@
  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
 
 #ifndef ShapeValue_h
 #define ShapeValue_h
 
 #include "core/fetch/ImageResource.h"
 #include "core/rendering/style/BasicShapes.h"
+#include "core/rendering/style/DataEquivalency.h"
 #include "core/rendering/style/RenderStyleConstants.h"
 #include "core/rendering/style/StyleImage.h"
 #include "wtf/PassRefPtr.h"
 
 namespace blink {
 
 class ShapeValue : public RefCounted<ShapeValue> {
 public:
     enum ShapeValueType {
         // The Auto value is defined by a null ShapeValue*
@@ skipping 70 matching lines @@
     CSSBoxType m_cssBox;
 };
 
 inline bool ShapeValue::operator==(const ShapeValue& other) const
 {
     if (type() != other.type())
         return false;
 
     switch (type()) {
     case Shape:
-        return shape() == other.shape() && cssBox() == other.cssBox();
+        return dataEquivalent(shape(), other.shape()) && cssBox() == other.cssBox();
     case Box:
         return cssBox() == other.cssBox();
     case Image:
-        return image() == other.image();
+        return dataEquivalent(image(), other.image());
     }
 
     ASSERT_NOT_REACHED();
     return false;
 }
 
 }
 
 #endif