Fix remaining incompatibilities between scoped_ptr and unique_ptr.

cc/animation/element_animations.h

 // 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.
 
 #ifndef CC_ANIMATION_ELEMENT_ANIMATIONS_H_
 #define CC_ANIMATION_ELEMENT_ANIMATIONS_H_
 
 #include "base/containers/linked_list.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ skipping 40 matching lines @@
     return layer_animation_controller_.get();
   }
 
   void CreateLayerAnimationController(int layer_id);
   void DestroyLayerAnimationController();
 
   void LayerRegistered(int layer_id, LayerTreeType tree_type);
   void LayerUnregistered(int layer_id, LayerTreeType tree_type);
 
   bool has_active_value_observer_for_testing() const {
-    return active_value_observer_;
+    return !!active_value_observer_;
   }
   bool has_pending_value_observer_for_testing() const {
-    return pending_value_observer_;
+    return !!pending_value_observer_;
   }
 
   void AddPlayer(AnimationPlayer* player);
   void RemovePlayer(AnimationPlayer* player);
   bool IsEmpty() const;
 
   typedef base::LinkedList<AnimationPlayer> PlayersList;
   typedef base::LinkNode<AnimationPlayer> PlayersListNode;
   const PlayersList& players_list() const { return *players_list_.get(); }
 
@@ skipping 41 matching lines @@
   // LAC is owned by ElementAnimations (1:1 relationship).
   scoped_refptr<LayerAnimationController> layer_animation_controller_;
   AnimationHost* animation_host_;
 
   DISALLOW_COPY_AND_ASSIGN(ElementAnimations);
 };
 
 }  // namespace cc
 
 #endif  // CC_ANIMATION_ELEMENT_ANIMATIONS_H_