Convert //ash from scoped_ptr to std::unique_ptr

ash/rotator/screen_rotation_animation.cc

 // Copyright 2015 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/screen_rotation_animation.h"
 
 #include "base/time/time.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/layer_animation_delegate.h"
 #include "ui/gfx/animation/tween.h"
@@ skipping 11 matching lines @@
     float target_opacity,
     gfx::Point pivot,
     base::TimeDelta duration,
     gfx::Tween::Type tween_type)
     : ui::LayerAnimationElement(
           LayerAnimationElement::TRANSFORM | LayerAnimationElement::OPACITY,
           duration),
       tween_type_(tween_type),
       initial_opacity_(initial_opacity),
       target_opacity_(target_opacity) {
-  scoped_ptr<ui::InterpolatedTransform> rotation(
+  std::unique_ptr<ui::InterpolatedTransform> rotation(
       new ui::InterpolatedTransformAboutPivot(
           pivot, new ui::InterpolatedRotation(start_degrees, end_degrees)));
 
   // Use the target transform/bounds in case the layer is already animating.
   gfx::Transform current_transform = layer->GetTargetTransform();
   interpolated_transform_.reset(
       new ui::InterpolatedConstantTransform(current_transform));
   interpolated_transform_->SetChild(rotation.release());
 }
 
@@ skipping 17 matching lines @@
   target->transform = interpolated_transform_->Interpolate(1.0);
 }
 
 void ScreenRotationAnimation::OnAbort(ui::LayerAnimationDelegate* delegate) {
   TargetValue target_value;
   OnGetTarget(&target_value);
   delegate->SetTransformFromAnimation(target_value.transform);
 }
 
 }  // namespace ash