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

ppapi/proxy/ppb_image_data_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_IMAGE_DATA_PROXY_H_
 #define PPAPI_PPB_IMAGE_DATA_PROXY_H_
 
 #include "base/scoped_ptr.h"
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_instance.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/proxy/interface_proxy.h"
 #include "ppapi/proxy/serialized_structs.h"
 #include "ppapi/shared_impl/image_data_impl.h"
 #include "ppapi/shared_impl/resource.h"
 #include "ppapi/thunk/ppb_image_data_api.h"
 
 struct PPB_ImageData;
 class TransportDIB;
 
-namespace ppapi {
-class HostResource;
-}
-
 namespace skia {
 class PlatformCanvas;
 }
 
-namespace pp {
+namespace ppapi {
+
+class HostResource;
+
 namespace proxy {
 
 class PPB_ImageData_Proxy : public InterfaceProxy {
  public:
   PPB_ImageData_Proxy(Dispatcher* dispatcher, const void* target_interface);
   virtual ~PPB_ImageData_Proxy();
 
   static const Info* GetInfo();
 
   const PPB_ImageData* ppb_image_data_target() const {
@@ skipping 34 matching lines @@
 
   scoped_ptr<TransportDIB> transport_dib_;
 
   // Null when the image isn't mapped.
   scoped_ptr<skia::PlatformCanvas> mapped_canvas_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageData);
 };
 
 }  // namespace proxy
-}  // namespace pp
+}  // namespace ppapi
 
 #endif  // PPAPI_PPB_IMAGE_DATA_PROXY_H_