Replaced RefPtr::release with std::move in Source/core.

third_party/WebKit/Source/core/animation/CustomCompositorAnimations.cpp

 // Copyright 2016 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 "CustomCompositorAnimations.h"
 
 #include "core/animation/Animation.h"
 #include "core/animation/DocumentTimeline.h"
 #include "core/animation/KeyframeEffect.h"
 #include "core/animation/KeyframeEffectModel.h"
@@ skipping 74 matching lines @@
 void CustomCompositorAnimations::applyUpdate(
     Element& element,
     const CompositorMutation& mutation) {
   TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("compositor-worker"),
                "CustomCompositorAnimations::applyUpdate");
 
   if (mutation.isOpacityMutated()) {
     RefPtr<AnimatableValue> animatableValue =
         AnimatableDouble::create(mutation.opacity());
     m_animation = createOrUpdateAnimation(
-        m_animation, element, CSSPropertyOpacity, animatableValue.release());
+        m_animation, element, CSSPropertyOpacity, std::move(animatableValue));
   }
   if (mutation.isTransformMutated()) {
     TransformOperations ops;
     ops.operations().push_back(Matrix3DTransformOperation::create(
         TransformationMatrix(mutation.transform())));
     RefPtr<AnimatableValue> animatableValue =
         AnimatableTransform::create(ops, 1);
     m_animation = createOrUpdateAnimation(
-        m_animation, element, CSSPropertyTransform, animatableValue.release());
+        m_animation, element, CSSPropertyTransform, std::move(animatableValue));
   }
 }
 
 }  // namespace blink