Add additive animation support for CSS properties perspective-origin and object-position

third_party/WebKit/Source/core/animation/StringKeyframe.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/animation/StringKeyframe.h"
 
 #include "core/StylePropertyShorthand.h"
 #include "core/animation/ConstantStyleInterpolation.h"
 #include "core/animation/DeferredLegacyStyleInterpolation.h"
 #include "core/animation/DoubleStyleInterpolation.h"
@@ skipping 184 matching lines @@
     }
 
     case CSSPropertyBorderBottomLeftRadius:
     case CSSPropertyBorderBottomRightRadius:
     case CSSPropertyBorderTopLeftRadius:
     case CSSPropertyBorderTopRightRadius:
         if (LengthPairStyleInterpolation::canCreateFrom(*fromCSSValue) && LengthPairStyleInterpolation::canCreateFrom(*toCSSValue))
             return LengthPairStyleInterpolation::create(*fromCSSValue, *toCSSValue, property, RangeNonNegative);
         break;
 
-    case CSSPropertyPerspectiveOrigin:
     case CSSPropertyTransformOrigin: {
         RefPtr<Interpolation> interpolation = ListStyleInterpolation<LengthStyleInterpolation>::maybeCreateFromList(*fromCSSValue, *toCSSValue, property, range);
         if (interpolation)
             return interpolation.release();
 
         // FIXME: Handle keywords: top, right, left, center, bottom
         return createLegacyStyleInterpolation(property, end, element, baseStyle);
     }
 
     case CSSPropertyClip: {
@@ skipping 104 matching lines @@
 }
 
 PassRefPtr<Interpolation> SVGPropertySpecificKeyframe::maybeCreateInterpolation(PropertyHandle propertyHandle, Keyframe::PropertySpecificKeyframe& end, Element*, const ComputedStyle*) const
 {
     const InterpolationTypes* applicableTypes = PropertyInterpolationTypesMapping::get(propertyHandle);
     ASSERT(applicableTypes);
     return InvalidatableInterpolation::create(propertyHandle, *applicableTypes, *this, end);
 }
 
 } // namespace blink