Web Animations: Add CSSAnimatableValueFactory API (partial implementation)

Source/core/animation/AnimatableValue.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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/animation/AnimatableValue.h"
 
 #include "core/animation/AnimatableNeutral.h"
-#include "core/animation/AnimatableNumber.h"
-#include "core/animation/AnimatableUnknown.h"
 
 #include <algorithm>
 
 namespace WebCore {
 
-PassRefPtr<AnimatableValue> AnimatableValue::create(CSSValue* value)
-{
-    // FIXME: Move this logic to a separate factory class.
-    // FIXME: Handle all animatable CSSValue types.
-    if (AnimatableNumber::canCreateFrom(value))
-        return AnimatableNumber::create(value);
-    return AnimatableUnknown::create(value);
-}
-
 const AnimatableValue* AnimatableValue::neutralValue()
 {
     static AnimatableNeutral* neutralSentinelValue = AnimatableNeutral::create().leakRef();
     return neutralSentinelValue;
 }
 
 PassRefPtr<AnimatableValue> AnimatableValue::interpolate(const AnimatableValue* left, const AnimatableValue* right, double fraction)
 {
     ASSERT(left);
     ASSERT(right);
@@ skipping 16 matching lines @@
     if (right->isNeutral())
         return takeConstRef(left);
 
     if (left->isSameType(right))
         return left->addWith(right);
 
     return defaultAddWith(left, right);
 }
 
 } // namespace WebCore