Make all LayerAnimationElement::Create*Element return unique_ptr

ui/compositor/layer_animator.cc

 // Copyright (c) 2012 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 "ui/compositor/layer_animator.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 76 matching lines @@
 // on the layer animation delegate immediately.
 #define ANIMATED_PROPERTY(type, property, name, member_type, member)    \
   void LayerAnimator::Set##name(type value) {                           \
     base::TimeDelta duration = GetTransitionDuration();                 \
     if (duration.is_zero() && delegate() &&                             \
         (preemption_strategy_ != ENQUEUE_NEW_ANIMATION)) {              \
       StopAnimatingProperty(LayerAnimationElement::property);           \
       delegate()->Set##name##FromAnimation(value);                      \
       return;                                                           \
     }                                                                   \
-    std::unique_ptr<LayerAnimationElement> element(                     \
-        LayerAnimationElement::Create##name##Element(value, duration)); \
+    std::unique_ptr<LayerAnimationElement> element =                    \
+        LayerAnimationElement::Create##name##Element(value, duration);  \
     element->set_tween_type(tween_type_);                               \
-    StartAnimation(new LayerAnimationSequence(element.release()));      \
+    StartAnimation(new LayerAnimationSequence(std::move(element)));     \
   }                                                                     \
                                                                         \
   member_type LayerAnimator::GetTarget##name() const {                  \
     LayerAnimationElement::TargetValue target(delegate());              \
     GetTargetValue(&target);                                            \
     return target.member;                                               \
   }
 
 ANIMATED_PROPERTY(
     const gfx::Transform&, TRANSFORM, Transform, gfx::Transform, transform);
@@ skipping 820 matching lines @@
     const base::WeakPtr<LayerAnimationSequence>& sequence)
     : sequence_(sequence) {
 }
 
 LayerAnimator::RunningAnimation::RunningAnimation(
     const RunningAnimation& other) = default;
 
 LayerAnimator::RunningAnimation::~RunningAnimation() { }
 
 }  // namespace ui