Add support for unprefixed CSS Transforms

Source/core/css/RuntimeCSSEnabled.cpp

 /*
  * Copyright (C) 2013 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 88 matching lines @@
         CSSPropertyAnimationDuration,
         CSSPropertyAnimationTimingFunction,
         CSSPropertyAnimationDelay,
         CSSPropertyAnimationIterationCount,
         CSSPropertyAnimationDirection,
         CSSPropertyAnimationFillMode,
         CSSPropertyAnimationPlayState
     };
     setCSSPropertiesEnabled(animationProperties, WTF_ARRAY_LENGTH(animationProperties), RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled());
 
+    CSSPropertyID transformProperties[] = {
+        CSSPropertyBackfaceVisibility,
+        CSSPropertyPerspective,
+        CSSPropertyPerspectiveOrigin,
+        CSSPropertyTransform,
+        CSSPropertyTransformOrigin,
+        CSSPropertyTransformStyle
+    };
+    setCSSPropertiesEnabled(transformProperties, WTF_ARRAY_LENGTH(transformProperties), RuntimeEnabledFeatures::cssTransformsUnprefixedEnabled());
+
     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyMixBlendMode, RuntimeEnabledFeatures::cssCompositingEnabled());
     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyIsolation, RuntimeEnabledFeatures::cssCompositingEnabled());
     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyTouchAction, RuntimeEnabledFeatures::cssTouchActionEnabled());
     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyTouchActionDelay, RuntimeEnabledFeatures::cssTouchActionDelayEnabled());
     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyPaintOrder, RuntimeEnabledFeatures::svgPaintOrderEnabled());
     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyMaskSourceType, RuntimeEnabledFeatures::cssMaskSourceTypeEnabled());
     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyColumnFill, RuntimeEnabledFeatures::regionBasedColumnsEnabled());
     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyScrollBehavior, RuntimeEnabledFeatures::cssomSmoothScrollEnabled());
     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyWillChange, RuntimeEnabledFeatures::cssWillChangeEnabled());
 
@@ skipping 37 matching lines @@
 void RuntimeCSSEnabled::filterEnabledCSSPropertiesIntoVector(const CSSPropertyID* properties, size_t propertyCount, Vector<CSSPropertyID>& outVector)
 {
     for (unsigned i = 0; i < propertyCount; i++) {
         CSSPropertyID property = properties[i];
         if (RuntimeCSSEnabled::isCSSPropertyEnabled(property))
             outVector.append(property);
     }
 }
 
 } // namespace WebCore