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

ppapi/proxy/interface_id.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_INTERFACE_ID_H_
 #define PPAPI_PROXY_INTERFACE_ID_H_
 
-namespace pp {
+namespace ppapi {
 namespace proxy {
 
 // These numbers must be all small integers. They are used in a lookup table
 // to route messages to the appropriate message handler.
 enum InterfaceID {
   // Zero is reserved for control messages.
   INTERFACE_ID_NONE = 0,
   INTERFACE_ID_PPB_AUDIO = 1,
   INTERFACE_ID_PPB_AUDIO_CONFIG,
   INTERFACE_ID_PPB_BROKER,
@@ skipping 44 matching lines @@
   INTERFACE_ID_PPP_VIDEO_CAPTURE_DEV,
   INTERFACE_ID_PPP_VIDEO_DECODER_DEV,
 
   INTERFACE_ID_RESOURCE_CREATION,
 
   // Must be last to indicate the number of interface IDs.
   INTERFACE_ID_COUNT
 };
 
 }  // namespace proxy
-}  // namespace pp
+}  // namespace ppapi
 
 #endif  // PPAPI_PROXY_INTERFACE_ID_H_