Move ScopedPtrHashMap from cc to base

cc/trees/tree_synchronizer.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_TREES_TREE_SYNCHRONIZER_H_
 #define CC_TREES_TREE_SYNCHRONIZER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/base/cc_export.h"
-#include "cc/base/scoped_ptr_hash_map.h"
 
 namespace cc {
 
 class LayerImpl;
 class LayerTreeImpl;
 class Layer;
 
 class CC_EXPORT TreeSynchronizer {
  public:
   // Accepts a Layer tree and returns a reference to a LayerImpl tree that
@@ skipping 25 matching lines @@
       LayerType* layer,
       LayerImpl* layer_impl,
       size_t* num_dependents_need_push_properties_for_parent);
 
   DISALLOW_COPY_AND_ASSIGN(TreeSynchronizer);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_TREE_SYNCHRONIZER_H_