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

ppapi/shared_impl/tracker_base.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_SHARED_IMPL_TRACKER_BASE_H_
 #define PPAPI_SHARED_IMPL_TRACKER_BASE_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "ppapi/c/pp_instance.h"
@@ skipping 22 matching lines @@
   // process.
   static void Init(TrackerBase*(*getter)());
 
   // Retrieves the global tracker. This will be NULL if you haven't called
   // Init() first (it should be unnecessary to NULL-check this).
   static TrackerBase* Get();
 
   // Returns the function object corresponding to the given ID, or NULL if
   // there isn't one.
   virtual FunctionGroupBase* GetFunctionAPI(PP_Instance inst,
-                                            pp::proxy::InterfaceID id) = 0;
+                                            proxy::InterfaceID id) = 0;
 
   virtual VarTracker* GetVarTracker() = 0;
   virtual ResourceTracker* GetResourceTracker() = 0;
 };
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_TRACKER_BASE_H_