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

Source/core/animation/AnimationEffectTiming.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/animation/AnimationEffectTiming.h"
 
 #include "bindings/core/v8/UnionTypesCore.h"
 #include "core/animation/AnimationEffect.h"
 #include "core/animation/KeyframeEffect.h"
 #include "platform/animation/TimingFunction.h"
 
 namespace blink {
 
-PassRefPtrWillBeRawPtr<AnimationEffectTiming> AnimationEffectTiming::create(AnimationEffect* parent)
+AnimationEffectTiming* AnimationEffectTiming::create(AnimationEffect* parent)
 {
-    return adoptRefWillBeNoop(new AnimationEffectTiming(parent));
+    return new AnimationEffectTiming(parent);
 }
 
 AnimationEffectTiming::AnimationEffectTiming(AnimationEffect* parent)
     : m_parent(parent)
 {
 }
 
 double AnimationEffectTiming::delay()
 {
     return m_parent->specifiedTiming().startDelay * 1000;
@@ skipping 106 matching lines @@
     TimingInput::setTimingFunction(timing, easing);
     m_parent->updateSpecifiedTiming(timing);
 }
 
 DEFINE_TRACE(AnimationEffectTiming)
 {
     visitor->trace(m_parent);
 }
 
 } // namespace blink