Use a direct include of the shared_memory header in media/, ppapi/, webkit/.

ppapi/proxy/serialized_var.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 PPAPI_PROXY_SERIALIZED_VAR_H_
 #define PPAPI_PROXY_SERIALIZED_VAR_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/shared_memory.h"
+#include "base/memory/shared_memory.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_var.h"
 #include "ppapi/proxy/ppapi_proxy_export.h"
 #include "ppapi/proxy/raw_var_data.h"
 #include "ppapi/proxy/serialized_handle.h"
 #include "ppapi/proxy/serialized_structs.h"
 #include "ppapi/proxy/var_serialization_rules.h"
 
 class PickleIterator;
 
@@ skipping 468 matching lines @@
  public:
   explicit SerializedVarTestReader(const SerializedVar& var);
 
   PP_Var GetVar() const { return inner_->GetVar(); }
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_SERIALIZED_VAR_H_