Make all LayerAnimationElement::Create*Element return unique_ptr

ui/app_list/views/pulsing_block_view.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/app_list/views/pulsing_block_view.h"
 
 #include <stddef.h>
 
+#include <memory>
 #include <vector>
 
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "base/rand_util.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/layer_animation_element.h"
 #include "ui/compositor/layer_animation_sequence.h"
 #include "ui/compositor/layer_animator.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/transform_util.h"
 
 namespace {
 
 const SkColor kBlockColor = SkColorSetRGB(225, 225, 225);
 const int kBlockSize = 64;
 
 const int kAnimationDurationInMs = 600;
 const float kAnimationOpacity[] = { 0.4f, 0.8f, 0.4f };
 const float kAnimationScale[] = { 0.8f, 1.0f, 0.8f };
 
 void SchedulePulsingAnimation(ui::Layer* layer) {
   DCHECK(layer);
   DCHECK_EQ(arraysize(kAnimationOpacity), arraysize(kAnimationScale));
 
-  std::unique_ptr<ui::LayerAnimationSequence> opacity_sequence(
-      new ui::LayerAnimationSequence());
-  std::unique_ptr<ui::LayerAnimationSequence> transform_sequence(
-      new ui::LayerAnimationSequence());
+  std::unique_ptr<ui::LayerAnimationSequence> opacity_sequence =
+      base::MakeUnique<ui::LayerAnimationSequence>();
+  std::unique_ptr<ui::LayerAnimationSequence> transform_sequence =
+      base::MakeUnique<ui::LayerAnimationSequence>();
 
   // The animations loop infinitely.
   opacity_sequence->set_is_cyclic(true);
   transform_sequence->set_is_cyclic(true);
 
   const gfx::Rect local_bounds(layer->bounds().size());
   for (size_t i = 0; i < arraysize(kAnimationOpacity); ++i) {
     opacity_sequence->AddElement(
         ui::LayerAnimationElement::CreateOpacityElement(
             kAnimationOpacity[i],
@@ skipping 44 matching lines @@
   SchedulePulsingAnimation(layer());
 }
 
 void PulsingBlockView::OnPaint(gfx::Canvas* canvas) {
   gfx::Rect rect(GetContentsBounds());
   rect.ClampToCenteredSize(gfx::Size(kBlockSize, kBlockSize));
   canvas->FillRect(rect, kBlockColor);
 }
 
 }  // namespace app_list