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

ppapi/proxy/ppb_graphics_2d_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_GRAPHICS_2D_PROXY_H_
 #define PPAPI_PPB_GRAPHICS_2D_PROXY_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_module.h"
 #include "ppapi/c/pp_module.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_size.h"
 #include "ppapi/c/pp_var.h"
 #include "ppapi/cpp/completion_callback.h"
 #include "ppapi/proxy/interface_proxy.h"
 #include "ppapi/proxy/proxy_non_thread_safe_ref_count.h"
 #include "ppapi/shared_impl/host_resource.h"
 
 struct PPB_Graphics2D;
 struct PP_Point;
 struct PP_Rect;
 
-namespace pp {
+namespace ppapi {
 namespace proxy {
 
 class PPB_Graphics2D_Proxy : public InterfaceProxy {
  public:
   PPB_Graphics2D_Proxy(Dispatcher* dispatcher, const void* target_interface);
   virtual ~PPB_Graphics2D_Proxy();
 
   static const Info* GetInfo();
 
   static PP_Resource CreateProxyResource(PP_Instance instance,
@@ skipping 23 matching lines @@
   void OnMsgFlush(const ppapi::HostResource& graphics_2d);
 
   // Renderer->plugin message handlers.
   void OnMsgFlushACK(const ppapi::HostResource& graphics_2d,
                      int32_t pp_error);
 
   // Called in the renderer to send the given flush ACK to the plugin.
   void SendFlushACKToPlugin(int32_t result,
                             const ppapi::HostResource& graphics_2d);
 
-  CompletionCallbackFactory<PPB_Graphics2D_Proxy,
-                            ProxyNonThreadSafeRefCount> callback_factory_;
+  pp::CompletionCallbackFactory<PPB_Graphics2D_Proxy,
+                                ProxyNonThreadSafeRefCount> callback_factory_;
 };
 
 }  // namespace proxy
-}  // namespace pp
+}  // namespace ppapi
 
 #endif  // PPAPI_PPB_GRAPHICS_2D_PROXY_H_