Replace scoped_ptr with std::unique_ptr in //ui

ui/compositor/scoped_layer_animation_settings.h

 // 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.
 
 #ifndef UI_COMPOSITOR_SCOPED_LAYER_ANIMATION_SETTINGS_H_
 #define UI_COMPOSITOR_SCOPED_LAYER_ANIMATION_SETTINGS_H_
 
 #include <set>
 
 #include "base/macros.h"
@@ skipping 42 matching lines @@
   // the layer associated with animator_ before animating.
   void AddInverselyAnimatedLayer(Layer* inverse_layer);
 
  private:
   scoped_refptr<LayerAnimator> animator_;
   bool old_is_transition_duration_locked_;
   base::TimeDelta old_transition_duration_;
   gfx::Tween::Type old_tween_type_;
   LayerAnimator::PreemptionStrategy old_preemption_strategy_;
   std::set<ImplicitAnimationObserver*> observers_;
-  scoped_ptr<InvertingObserver> inverse_observer_;
+  std::unique_ptr<InvertingObserver> inverse_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedLayerAnimationSettings);
 };
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_SCOPED_LAYER_ANIMATION_SETTINGS_H_