Make classes and structures in Source/core/animation fast-allocated.

Source/core/animation/css/CSSAnimatableValueFactory.h

 /*
  * 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 15 matching lines @@
  * 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.
  */
 
 #ifndef CSSAnimatableValueFactory_h
 #define CSSAnimatableValueFactory_h
 
 #include "core/CSSPropertyNames.h"
 #include "core/animation/animatable/AnimatableValue.h"
+#include "wtf/Allocator.h"
 #include "wtf/PassRefPtr.h"
 
 namespace blink {
 
 class ComputedStyle;
 
 class CSSAnimatableValueFactory {
+    STATIC_ONLY(CSSAnimatableValueFactory);
 public:
     static PassRefPtrWillBeRawPtr<AnimatableValue> create(CSSPropertyID, const ComputedStyle&);
 private:
     static PassRefPtrWillBeRawPtr<AnimatableValue> createFromColor(CSSPropertyID, const ComputedStyle&);
 };
 
 } // namespace blink
 
 #endif // CSSAnimatableValueFactory_h