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

ppapi/proxy/ppb_crypto_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_crypto_proxy.h"
 
 #include "ppapi/c/dev/ppb_crypto_dev.h"
 #include "ppapi/proxy/interface_id.h"
 #include "ppapi/shared_impl/crypto_impl.h"
 
-namespace pp {
+namespace ppapi {
 namespace proxy {
 
 namespace {
 
 const PPB_Crypto_Dev crypto_interface = {
   &ppapi::CryptoImpl::GetRandomBytes
 };
 
 InterfaceProxy* CreateCryptoProxy(Dispatcher* dispatcher,
                                   const void* target_interface) {
@@ skipping 22 matching lines @@
   };
   return &info;
 }
 
 bool PPB_Crypto_Proxy::OnMessageReceived(const IPC::Message& msg) {
   NOTREACHED();
   return false;
 }
 
 }  // namespace proxy
-}  // namespace pp
+}  // namespace ppapi