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

ppapi/proxy/var_serialization_rules.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_PROXY_VAR_SERIALIZATION_RULES_H_
 #define PPAPI_PROXY_VAR_SERIALIZATION_RULES_H_
 
 #include "ppapi/c/pp_var.h"
 
 #include <string>
 
-namespace pp {
+namespace ppapi {
 namespace proxy {
 
 class Dispatcher;
 
 // Encapsulates the rules for serializing and deserializing vars to and from
 // the local process. The renderer and the plugin process each have separate
 // bookkeeping rules.
 class VarSerializationRules {
  public:
   virtual ~VarSerializationRules() {}
@@ skipping 58 matching lines @@
 
   // ---------------------------------------------------------------------------
 
   virtual void ReleaseObjectRef(const PP_Var& var) = 0;
 
  protected:
   VarSerializationRules() {}
 };
 
 }  // namespace proxy
-}  // namespace pp
+}  // namespace ppapi
 
 #endif  // PPAPI_PROXY_VAR_SERIALIZATION_RULES_H_