Modify AnimationEffect::sample() to return a CompositableValue

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 11 matching lines @@
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * 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/AnimationEffect.h"
-
-#include "core/css/StylePropertySet.h"
+#include "core/animation/AnimatableValue.h"
 
 namespace WebCore {
 
-PassRefPtr<AnimationEffect> AnimationEffect::create()
+PassRefPtr<CSSValue> AnimatableValue::toCSSValue() const
 {
-    return adoptRef(new AnimationEffect());
+    ASSERT_NOT_REACHED();
+    return 0;
 }
 
-AnimationEffect::AnimationEffect()
-{
-}
-
-// FIXME: This shouldn't directly generate StylePropertySet values.
-PassRefPtr<StylePropertySet> AnimationEffect::sample(double fraction, int iteration)
-{
-    return StylePropertySet::create(0, 0);
-}
-
-} // namespace
+} // namespace WebCore