Fix remaining incompatibilities between scoped_ptr and unique_ptr.

cc/layers/layer_impl.h

 // Copyright 2011 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_LAYERS_LAYER_IMPL_H_
 #define CC_LAYERS_LAYER_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 226 matching lines @@
   void SetMaskLayer(scoped_ptr<LayerImpl> mask_layer);
   LayerImpl* mask_layer() { return mask_layer_.get(); }
   const LayerImpl* mask_layer() const { return mask_layer_.get(); }
   scoped_ptr<LayerImpl> TakeMaskLayer();
 
   void SetReplicaLayer(scoped_ptr<LayerImpl> replica_layer);
   LayerImpl* replica_layer() { return replica_layer_.get(); }
   const LayerImpl* replica_layer() const { return replica_layer_.get(); }
   scoped_ptr<LayerImpl> TakeReplicaLayer();
 
-  bool has_mask() const { return mask_layer_; }
-  bool has_replica() const { return replica_layer_; }
+  bool has_mask() const { return !!mask_layer_; }
+  bool has_replica() const { return !!replica_layer_; }
   bool replica_has_mask() const {
     return replica_layer_ && (mask_layer_ || replica_layer_->mask_layer_);
   }
 
   LayerTreeImpl* layer_tree_impl() const { return layer_tree_impl_; }
 
   void PopulateSharedQuadState(SharedQuadState* state) const;
   void PopulateScaledSharedQuadState(SharedQuadState* state, float scale) const;
   // WillDraw must be called before AppendQuads. If WillDraw returns false,
   // AppendQuads and DidDraw will not be called. If WillDraw returns true,
@@ skipping 637 matching lines @@
   bool layer_or_descendant_has_input_handler_;
   bool sorted_for_recursion_;
   bool is_hidden_from_property_trees_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_LAYER_IMPL_H_