Change ScopedPtrHashMap's 2nd template parameter

cc/trees/tree_synchronizer.cc

 // 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.
 
 #include "cc/trees/tree_synchronizer.h"
 
 #include <set>
 
 #include "base/containers/hash_tables.h"
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "base/logging.h"
 #include "base/trace_event/trace_event.h"
 #include "cc/animation/scrollbar_animation_controller.h"
 #include "cc/input/scrollbar.h"
 #include "cc/layers/layer.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/layers/scrollbar_layer_impl_base.h"
 #include "cc/layers/scrollbar_layer_interface.h"
 
 namespace cc {
 
-typedef base::ScopedPtrHashMap<int, LayerImpl> ScopedPtrLayerImplMap;
+typedef base::ScopedPtrHashMap<int, scoped_ptr<LayerImpl>>
+    ScopedPtrLayerImplMap;
 typedef base::hash_map<int, LayerImpl*> RawPtrLayerImplMap;
 
 void CollectExistingLayerImplRecursive(ScopedPtrLayerImplMap* old_layers,
                                        scoped_ptr<LayerImpl> layer_impl) {
   if (!layer_impl)
     return;
 
   layer_impl->ClearScrollbars();
   if (ScrollbarLayerImplBase* scrollbar_layer =
           layer_impl->ToScrollbarLayer()) {
@@ skipping 269 matching lines @@
 #endif
 }
 
 void TreeSynchronizer::PushProperties(LayerImpl* layer, LayerImpl* layer_impl) {
   size_t num_dependents_need_push_properties = 0;
   PushPropertiesInternal(
       layer, layer_impl, &num_dependents_need_push_properties);
 }
 
 }  // namespace cc