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

ppapi/proxy/ppb_broker_proxy.cc

 // 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.
 
 #include "ppapi/proxy/ppb_broker_proxy.h"
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/trusted/ppb_broker_trusted.h"
 #include "ppapi/proxy/enter_proxy.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/thunk/ppb_broker_api.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/thunk.h"
 
-using ppapi::HostResource;
-using ppapi::Resource;
 using ppapi::thunk::PPB_Broker_API;
 
-namespace pp {
+namespace ppapi {
 namespace proxy {
 
 namespace {
 
 base::PlatformFile IntToPlatformFile(int32_t handle) {
 #if defined(OS_WIN)
   return reinterpret_cast<HANDLE>(static_cast<intptr_t>(handle));
 #elif defined(OS_POSIX)
   return handle;
 #else
@@ skipping 237 matching lines @@
       // The plugin did not receive the handle, so it must be closed.
       // The easiest way to clean it up is to just put it in an object
       // and then close it. This failure case is not performance critical.
       // The handle could still leak if Send succeeded but the IPC later failed.
       base::SyncSocket temp_socket(
           IPC::PlatformFileForTransitToPlatformFile(foreign_socket_handle));
   }
 }
 
 }  // namespace proxy
-}  // namespace pp
+}  // namespace ppapi