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

Source/core/animation/LengthStyleInterpolation.cpp

Index: Source/core/animation/LengthStyleInterpolation.cpp
diff --git a/Source/core/animation/LengthStyleInterpolation.cpp b/Source/core/animation/LengthStyleInterpolation.cpp
index d787920217ef9d839ce155f08b13e25067dfd03e..1c82be458b9df1f2dc87a23582e573bb3a16b754 100644
--- a/Source/core/animation/LengthStyleInterpolation.cpp
+++ b/Source/core/animation/LengthStyleInterpolation.cpp
@@ -69,12 +69,12 @@ bool LengthStyleInterpolation::canCreateFrom(const CSSValue& value, CSSPropertyI
     return primitiveValue.isLength() || primitiveValue.isPercentage() || primitiveValue.isCalculatedPercentageWithLength();
 }
 
-PassOwnPtrWillBeRawPtr<InterpolableValue> LengthStyleInterpolation::toInterpolableValue(const CSSValue& value, CSSPropertyID id)
+InterpolableValue* LengthStyleInterpolation::toInterpolableValue(const CSSValue& value, CSSPropertyID id)
 {
     ASSERT(canCreateFrom(value, id));
-    OwnPtrWillBeRawPtr<InterpolableList> listOfValuesAndTypes = InterpolableList::create(2);
-    OwnPtrWillBeRawPtr<InterpolableList> listOfValues = InterpolableList::create(CSSPrimitiveValue::LengthUnitTypeCount);
-    OwnPtrWillBeRawPtr<InterpolableList> listOfTypes = InterpolableList::create(CSSPrimitiveValue::LengthUnitTypeCount);
+    InterpolableList* listOfValuesAndTypes = InterpolableList::create(2);
+    InterpolableList* listOfValues = InterpolableList::create(CSSPrimitiveValue::LengthUnitTypeCount);
+    InterpolableList* listOfTypes = InterpolableList::create(CSSPrimitiveValue::LengthUnitTypeCount);
 
     const CSSPrimitiveValue& primitive = toCSSPrimitiveValue(value);
 
@@ -99,10 +99,10 @@ PassOwnPtrWillBeRawPtr<InterpolableValue> LengthStyleInterpolation::toInterpolab
         listOfTypes->set(i, InterpolableNumber::create(arrayOfTypes.get(i)));
     }
 
-    listOfValuesAndTypes->set(0, listOfValues.release());
-    listOfValuesAndTypes->set(1, listOfTypes.release());
+    listOfValuesAndTypes->set(0, listOfValues);
+    listOfValuesAndTypes->set(1, listOfTypes);
 
-    return listOfValuesAndTypes.release();
+    return listOfValuesAndTypes;
 }
 
 bool LengthStyleInterpolation::isPixelsOrPercentOnly(const InterpolableValue& value)
@@ -315,9 +315,9 @@ void LengthStyleInterpolation::applyInterpolableValue(CSSPropertyID property, co
     if (lengthSetter && isPixelsOrPercentOnly(value)) {
         (state.style()->*lengthSetter)(lengthFromInterpolableValue(value, range, state.style()->effectiveZoom()));
 #if ENABLE(ASSERT)
-        RefPtrWillBeRawPtr<AnimatableValue> before = CSSAnimatableValueFactory::create(property, *state.style());
+        AnimatableValue* before = CSSAnimatableValueFactory::create(property, *state.style());
         StyleBuilder::applyProperty(property, state, fromInterpolableValue(value, range).get());
-        RefPtrWillBeRawPtr<AnimatableValue> after = CSSAnimatableValueFactory::create(property, *state.style());
+        AnimatableValue* after = CSSAnimatableValueFactory::create(property, *state.style());
         ASSERT(before->equals(*after));
 #endif
     } else {