Web Animations: Support animation of flood-opacity

Source/core/css/resolver/AnimatedStyleBuilder.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 162 matching lines @@
         return;
     case CSSPropertyFillOpacity:
         style->setFillOpacity(clampTo<float>(toAnimatableDouble(value)->toDouble(), 0, 1));
         return;
     case CSSPropertyFill:
         {
             const AnimatableSVGPaint* svgPaint = toAnimatableSVGPaint(value);
             style->accessSVGStyle()->setFillPaint(svgPaint->paintType(), svgPaint->color(), svgPaint->uri());
         }
         return;
+    case CSSPropertyFloodOpacity:
+        style->setFloodOpacity(clampTo<float>(toAnimatableDouble(value)->toDouble(), 0, 1));
+        return;
     case CSSPropertyHeight:
         style->setHeight(animatableValueToLength(value, state));
         return;
     case CSSPropertyKerning:
         style->setKerning(toAnimatableSVGLength(value)->toSVGLength());
         return;
     case CSSPropertyLeft:
         style->setLeft(animatableValueToLength(value, state));
         return;
     case CSSPropertyListStyleImage:
@@ skipping 155 matching lines @@
     case CSSPropertyZoom:
         style->setZoom(clampTo<float>(toAnimatableDouble(value)->toDouble()));
         return;
     default:
         RELEASE_ASSERT_WITH_MESSAGE(!CSSAnimations::isAnimatableProperty(property), "Web Animations not yet implemented: Unable to apply AnimatableValue to RenderStyle: %s", getPropertyNameString(property).utf8().data());
         ASSERT_NOT_REACHED();
     }
 }
 
 } // namespace WebCore