Add support for the object-position CSS property.

Source/core/page/animation/CSSPropertyAnimation.cpp

 /*
  * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
  * 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 68 matching lines @@
 {
     return to.blend(from, narrowPrecisionToFloat(progress));
 }
 
 static inline LengthSize blendFunc(const AnimationBase* anim, const LengthSize& from, const LengthSize& to, double progress)
 {
     return LengthSize(blendFunc(anim, from.width(), to.width(), progress),
                       blendFunc(anim, from.height(), to.height(), progress));
 }
 
+static inline LengthPoint blendFunc(const AnimationBase* anim, const LengthPoint& from, const LengthPoint& to, double progress)
+{
+    return LengthPoint(blendFunc(anim, from.x(), to.x(), progress), blendFunc(anim, from.y(), to.y(), progress));
+}
+
 static inline IntSize blendFunc(const AnimationBase* anim, const IntSize& from, const IntSize& to, double progress)
 {
     return IntSize(blendFunc(anim, from.width(), to.width(), progress),
                    blendFunc(anim, from.height(), to.height(), progress));
 }
 
 static inline ShadowStyle blendFunc(const AnimationBase* anim, ShadowStyle from, ShadowStyle to, double progress)
 {
     if (from == to)
         return to;
@@ skipping 1008 matching lines @@
 
     gPropertyWrappers->append(new FillLayersPropertyWrapper(CSSPropertyBackgroundPositionX, &RenderStyle::backgroundLayers, &RenderStyle::accessBackgroundLayers));
     gPropertyWrappers->append(new FillLayersPropertyWrapper(CSSPropertyBackgroundPositionY, &RenderStyle::backgroundLayers, &RenderStyle::accessBackgroundLayers));
     gPropertyWrappers->append(new FillLayersPropertyWrapper(CSSPropertyBackgroundSize, &RenderStyle::backgroundLayers, &RenderStyle::accessBackgroundLayers));
     gPropertyWrappers->append(new FillLayersPropertyWrapper(CSSPropertyWebkitBackgroundSize, &RenderStyle::backgroundLayers, &RenderStyle::accessBackgroundLayers));
 
     gPropertyWrappers->append(new FillLayersPropertyWrapper(CSSPropertyWebkitMaskPositionX, &RenderStyle::maskLayers, &RenderStyle::accessMaskLayers));
     gPropertyWrappers->append(new FillLayersPropertyWrapper(CSSPropertyWebkitMaskPositionY, &RenderStyle::maskLayers, &RenderStyle::accessMaskLayers));
     gPropertyWrappers->append(new FillLayersPropertyWrapper(CSSPropertyWebkitMaskSize, &RenderStyle::maskLayers, &RenderStyle::accessMaskLayers));
 
+    gPropertyWrappers->append(new PropertyWrapper<LengthPoint>(CSSPropertyObjectPosition, &RenderStyle::objectPosition, &RenderStyle::setObjectPosition));
+
     gPropertyWrappers->append(new PropertyWrapper<float>(CSSPropertyFontSize,
         // Must pass a specified size to setFontSize if Text Autosizing is enabled, but a computed size
         // if text zoom is enabled (if neither is enabled it's irrelevant as they're probably the same).
         // FIXME: Should we introduce an option to pass the computed font size here, allowing consumers to
         // enable text zoom rather than Text Autosizing? See http://crbug.com/227545.
         &RenderStyle::specifiedFontSize,
         &RenderStyle::setFontSize));
     gPropertyWrappers->append(new PropertyWrapper<unsigned short>(CSSPropertyWebkitColumnRuleWidth, &RenderStyle::columnRuleWidth, &RenderStyle::setColumnRuleWidth));
     gPropertyWrappers->append(new PropertyWrapper<float>(CSSPropertyWebkitColumnGap, &RenderStyle::columnGap, &RenderStyle::setColumnGap));
     gPropertyWrappers->append(new PropertyWrapper<unsigned short>(CSSPropertyWebkitColumnCount, &RenderStyle::columnCount, &RenderStyle::setColumnCount));
@@ skipping 138 matching lines @@
 }
 
 int CSSPropertyAnimation::getNumProperties()
 {
     ensurePropertyMap();
 
     return gPropertyWrappers->size();
 }
 
 }