Convert the pp::proxy namespace to the ppapi::proxy namespace.

ppapi/proxy/ppb_var_deprecated_proxy.h

 // Copyright (c) 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 PPAPI_PPB_VAR_DEPRECATED_PROXY_H_
 #define PPAPI_PPB_VAR_DEPRECATED_PROXY_H_
 
 #include <vector>
 
 #include "base/task.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/proxy/interface_proxy.h"
 
 struct PPB_Var_Deprecated;
 
-namespace pp {
+namespace ppapi {
 namespace proxy {
 
 class SerializedVar;
 class SerializedVarArray;
 class SerializedVarReceiveInput;
 class SerializedVarVectorOutParam;
 class SerializedVarVectorReceiveInput;
 class SerializedVarOutParam;
 class SerializedVarReturnValue;
 
@@ skipping 48 matching lines @@
                  SerializedVarReturnValue result);
   void OnMsgCallDeprecated(SerializedVarReceiveInput object,
                            SerializedVarReceiveInput method_name,
                            SerializedVarVectorReceiveInput arg_vector,
                            SerializedVarOutParam exception,
                            SerializedVarReturnValue result);
   void OnMsgConstruct(SerializedVarReceiveInput var,
                       SerializedVarVectorReceiveInput arg_vector,
                       SerializedVarOutParam exception,
                       SerializedVarReturnValue result);
-  void OnMsgIsInstanceOfDeprecated(pp::proxy::SerializedVarReceiveInput var,
+  void OnMsgIsInstanceOfDeprecated(SerializedVarReceiveInput var,
                                    int64 ppp_class,
                                    int64* ppp_class_data,
                                    PP_Bool* result);
   void OnMsgCreateObjectDeprecated(PP_Instance instance,
                                    int64 ppp_class,
                                    int64 ppp_class_data,
                                    SerializedVarReturnValue result);
 
   // Call in the host for messages that can be reentered.
   void SetAllowPluginReentrancy();
 
   void DoReleaseObject(int64 object_id);
   ScopedRunnableMethodFactory<PPB_Var_Deprecated_Proxy> task_factory_;
 };
 
 }  // namespace proxy
-}  // namespace pp
+}  // namespace ppapi
 
 #endif  // PPAPI_PPB_VAR_DEPRECATED_PROXY_H_