Make all LayerAnimationElement::Create*Element return unique_ptr

ash/rotator/window_rotation.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/rotator/window_rotation.h"
 
+#include "base/memory/ptr_util.h"
 #include "base/time/time.h"
 #include "ui/compositor/layer.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/interpolated_transform.h"
 #include "ui/gfx/transform.h"
 
 namespace ash {
 
 namespace {
 
@@ skipping 52 matching lines @@
       new_pivot = old_pivot = gfx::Point(width / 2, height / 2);
       new_origin_.SetPoint(width, height);
       break;
   }
 
   // Convert points to world space.
   current_transform.TransformPoint(&old_pivot);
   current_transform.TransformPoint(&new_pivot);
   current_transform.TransformPoint(&new_origin_);
 
-  std::unique_ptr<ui::InterpolatedTransform> rotation(
-      new ui::InterpolatedTransformAboutPivot(
-          old_pivot, new ui::InterpolatedRotation(0, degrees_)));
+  std::unique_ptr<ui::InterpolatedTransform> rotation =
+      base::MakeUnique<ui::InterpolatedTransformAboutPivot>(
+          old_pivot, base::MakeUnique<ui::InterpolatedRotation>(0, degrees_));
 
-  std::unique_ptr<ui::InterpolatedTransform> translation(
-      new ui::InterpolatedTranslation(
+  std::unique_ptr<ui::InterpolatedTransform> translation =
+      base::MakeUnique<ui::InterpolatedTranslation>(
           gfx::PointF(), gfx::PointF(new_pivot.x() - old_pivot.x(),
-                                     new_pivot.y() - old_pivot.y())));
+                                     new_pivot.y() - old_pivot.y()));
 
   float scale_factor = 0.9f;
-  std::unique_ptr<ui::InterpolatedTransform> scale_down(
-      new ui::InterpolatedScale(1.0f, scale_factor, 0.0f, 0.5f));
+  std::unique_ptr<ui::InterpolatedTransform> scale_down =
+      base::MakeUnique<ui::InterpolatedScale>(1.0f, scale_factor, 0.0f, 0.5f);
 
-  std::unique_ptr<ui::InterpolatedTransform> scale_up(
-      new ui::InterpolatedScale(1.0f, 1.0f / scale_factor, 0.5f, 1.0f));
+  std::unique_ptr<ui::InterpolatedTransform> scale_up =
+      base::MakeUnique<ui::InterpolatedScale>(1.0f, 1.0f / scale_factor, 0.5f,
+                                              1.0f);
 
   interpolated_transform_.reset(
       new ui::InterpolatedConstantTransform(current_transform));
 
-  scale_up->SetChild(scale_down.release());
-  translation->SetChild(scale_up.release());
-  rotation->SetChild(translation.release());
-  interpolated_transform_->SetChild(rotation.release());
+  scale_up->SetChild(std::move(scale_down));
+  translation->SetChild(std::move(scale_up));
+  rotation->SetChild(std::move(translation));
+  interpolated_transform_->SetChild(std::move(rotation));
 }
 
 void WindowRotation::OnStart(ui::LayerAnimationDelegate* delegate) {}
 
 bool WindowRotation::OnProgress(double t,
                                 ui::LayerAnimationDelegate* delegate) {
   delegate->SetTransformFromAnimation(interpolated_transform_->Interpolate(t));
   return true;
 }
 
 void WindowRotation::OnGetTarget(TargetValue* target) const {
   target->transform = interpolated_transform_->Interpolate(1.0);
 }
 
 void WindowRotation::OnAbort(ui::LayerAnimationDelegate* delegate) {}
 
 }  // namespace ash