Make all LayerAnimationElement::Create*Element return unique_ptr

ash/wm/session_state_animator_impl.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 "ash/wm/session_state_animator_impl.h"
 
 #include <vector>
 
 #include "ash/common/wm/wm_window_animations.h"
 #include "ash/public/cpp/shell_window_ids.h"
@@ skipping 236 matching lines @@
 // Starts grayscale/brightness animation for |window| over |duration|. Target
 // value for both grayscale and brightness are specified by |target|.
 void StartGrayscaleBrightnessAnimationForWindow(
     aura::Window* window,
     float target,
     base::TimeDelta duration,
     gfx::Tween::Type tween_type,
     ui::LayerAnimationObserver* observer) {
   ui::LayerAnimator* animator = window->layer()->GetAnimator();
 
-  std::unique_ptr<ui::LayerAnimationSequence> brightness_sequence(
-      new ui::LayerAnimationSequence());
-  std::unique_ptr<ui::LayerAnimationSequence> grayscale_sequence(
-      new ui::LayerAnimationSequence());
+  auto brightness_sequence = base::MakeUnique<ui::LayerAnimationSequence>();
+  auto grayscale_sequence = base::MakeUnique<ui::LayerAnimationSequence>();
 
-  std::unique_ptr<ui::LayerAnimationElement> brightness_element(
-      ui::LayerAnimationElement::CreateBrightnessElement(target, duration));
+  std::unique_ptr<ui::LayerAnimationElement> brightness_element =
+      ui::LayerAnimationElement::CreateBrightnessElement(target, duration);
   brightness_element->set_tween_type(tween_type);
-  brightness_sequence->AddElement(brightness_element.release());
+  brightness_sequence->AddElement(std::move(brightness_element));
 
-  std::unique_ptr<ui::LayerAnimationElement> grayscale_element(
-      ui::LayerAnimationElement::CreateGrayscaleElement(target, duration));
+  std::unique_ptr<ui::LayerAnimationElement> grayscale_element =
+      ui::LayerAnimationElement::CreateGrayscaleElement(target, duration);
   grayscale_element->set_tween_type(tween_type);
-  grayscale_sequence->AddElement(grayscale_element.release());
+  grayscale_sequence->AddElement(std::move(grayscale_element));
 
   std::vector<ui::LayerAnimationSequence*> animations;
   animations.push_back(brightness_sequence.release());
   animations.push_back(grayscale_sequence.release());
 
   if (observer)
     animations[0]->AddObserver(observer);
 
   animator->set_preemption_strategy(
       ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
@@ skipping 370 matching lines @@
                                                  gfx::Tween::EASE_IN, observer);
       break;
     case ANIMATION_UNDO_GRAYSCALE_BRIGHTNESS:
       StartGrayscaleBrightnessAnimationForWindow(
           window, 0.0, duration, gfx::Tween::EASE_IN_OUT, observer);
       break;
   }
 }
 
 }  // namespace ash