[Oilpan] Migrate most classes under core/animations to Oilpan heap.

Source/core/animation/ElementAnimation.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 32 matching lines @@
 
 
 namespace blink {
 
 class Dictionary;
 
 class ElementAnimation {
 public:
     static AnimationPlayer* animate(Element& element, const AnimationEffectOrDictionarySequence& effectInput, double duration, ExceptionState& exceptionState)
     {
-        RefPtrWillBeRawPtr<AnimationEffect> effect = EffectInput::convert(&element, effectInput, exceptionState);
+        AnimationEffect* effect = EffectInput::convert(&element, effectInput, exceptionState);
         if (exceptionState.hadException())
             return 0;
         return animateInternal(element, effect, TimingInput::convert(duration));
     }
 
     static AnimationPlayer* animate(Element& element, const AnimationEffectOrDictionarySequence& effectInput, const AnimationTimingProperties& timingInput, ExceptionState& exceptionState)
     {
-        RefPtrWillBeRawPtr<AnimationEffect> effect = EffectInput::convert(&element, effectInput, exceptionState);
+        AnimationEffect* effect = EffectInput::convert(&element, effectInput, exceptionState);
         if (exceptionState.hadException())
             return 0;
         return animateInternal(element, effect, TimingInput::convert(timingInput));
     }
 
     static AnimationPlayer* animate(Element& element, const AnimationEffectOrDictionarySequence& effectInput, ExceptionState& exceptionState)
     {
-        RefPtrWillBeRawPtr<AnimationEffect> effect = EffectInput::convert(&element, effectInput, exceptionState);
+        AnimationEffect* effect = EffectInput::convert(&element, effectInput, exceptionState);
         if (exceptionState.hadException())
             return 0;
         return animateInternal(element, effect, Timing());
     }
 
     static WillBeHeapVector<RefPtrWillBeMember<AnimationPlayer>> getAnimationPlayers(Element& element)
     {
         WillBeHeapVector<RefPtrWillBeMember<AnimationPlayer>> animationPlayers;
 
         if (!element.hasAnimations())
             return animationPlayers;
 
         for (const auto& player : element.document().timeline().getAnimationPlayers()) {
             ASSERT(player->source());
             if (toAnimation(player->source())->target() == element && (player->source()->isCurrent() || player->source()->isInEffect()))
                 animationPlayers.append(player);
         }
         return animationPlayers;
     }
 
 private:
-    static AnimationPlayer* animateInternal(Element& element, PassRefPtrWillBeRawPtr<AnimationEffect> effect, const Timing& timing)
+    static AnimationPlayer* animateInternal(Element& element, AnimationEffect* effect, const Timing& timing)
     {
-        RefPtrWillBeRawPtr<Animation> animation = Animation::create(&element, effect, timing);
-        return element.document().timeline().play(animation.get());
+        Animation* animation = Animation::create(&element, effect, timing);
+        return element.document().timeline().play(animation);
     }
 };
 
 } // namespace blink
 
 #endif // ElementAnimation_h