Add support for unprefixed CSS Transforms

Source/core/css/StylePropertySerializer.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Research In Motion Limited. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 295 matching lines @@
     case CSSPropertyWebkitMaskPosition:
         return getLayeredShorthandValue(webkitMaskPositionShorthand());
     case CSSPropertyWebkitMaskRepeat:
         return getLayeredShorthandValue(webkitMaskRepeatShorthand());
     case CSSPropertyWebkitMask:
         return getLayeredShorthandValue(webkitMaskShorthand());
     case CSSPropertyWebkitTextEmphasis:
         return getShorthandValue(webkitTextEmphasisShorthand());
     case CSSPropertyWebkitTextStroke:
         return getShorthandValue(webkitTextStrokeShorthand());
+    case CSSPropertyTransformOrigin:

[Julien - ping for review, 2014/03/21 03:57:25]

Wouldn't that make us return the prefixed property shorthand in this case if
both prefixed / unprefixed are defined?

[dstockwell, 2014/03/24 21:40:56]

I see. I'll look into removing this.

     case CSSPropertyWebkitTransformOrigin:
         return getShorthandValue(webkitTransformOriginShorthand());
     case CSSPropertyWebkitTransition:
         return getLayeredShorthandValue(webkitTransitionShorthand());
     case CSSPropertyWebkitAnimation:
         return getLayeredShorthandValue(webkitAnimationShorthand());
     case CSSPropertyMarker: {
         RefPtrWillBeRawPtr<CSSValue> value = m_propertySet.getPropertyCSSValue(CSSPropertyMarkerStart);
         if (value)
             return value->cssText();
@@ skipping 516 matching lines @@
             isInitialValue = false;
         if (!value->isInheritedValue())
             isInheritedValue = false;
         if (isImportant != m_propertySet.propertyIsImportant(shorthand.properties()[i]))
             return false;
     }
     return isInitialValue || isInheritedValue;
 }
 
 }