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

ppapi/proxy/ppb_url_util_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_PROXY_PPB_URL_UTIL_PROXY_H_
 #define PPAPI_PROXY_PPB_URL_UTIL_PROXY_H_
 
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/proxy/interface_proxy.h"
 #include "ppapi/proxy/serialized_var.h"
 
 struct PPB_URLUtil_Dev;
 
-namespace pp {
+namespace ppapi {
 namespace proxy {
 
 class PPB_URLUtil_Proxy : public InterfaceProxy {
  public:
   PPB_URLUtil_Proxy(Dispatcher* dispatcher, const void* target_interface);
   virtual ~PPB_URLUtil_Proxy();
 
   static const Info* GetInfo();
 
   const PPB_URLUtil_Dev* ppb_url_util_target() const {
@@ skipping 16 matching lines @@
                                       PP_Bool* result);
   void OnMsgGetDocumentURL(PP_Instance instance,
                            SerializedVarReturnValue result);
   void OnMsgGetPluginInstanceURL(PP_Instance instance,
                                  SerializedVarReturnValue result);
 
   DISALLOW_COPY_AND_ASSIGN(PPB_URLUtil_Proxy);
 };
 
 }  // namespace proxy
-}  // namespace pp
+}  // namespace ppapi
 
 #endif  // PPAPI_PROXY_PPB_URL_UTIL_PROXY_H_