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

ppapi/proxy/plugin_var_tracker.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/plugin_var_tracker.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/singleton.h"
 #include "ppapi/c/ppb_var.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/interface_id.h"
 #include "ppapi/proxy/proxy_object_var.h"
 #include "ppapi/shared_impl/var.h"
 
-using ppapi::ProxyObjectVar;
-using ppapi::Var;
-
-namespace pp {
+namespace ppapi {
 namespace proxy {
 
 PluginVarTracker::HostVar::HostVar(PluginDispatcher* d, int32 i)
     : dispatcher(d),
       host_object_id(i) {
 }
 
 bool PluginVarTracker::HostVar::operator<(const HostVar& other) const {
   if (dispatcher < other.dispatcher)
     return true;
@@ skipping 239 matching lines @@
   // Have this host var, look up the object.
   VarMap::iterator ret = live_vars_.find(found->second);
   DCHECK(ret != live_vars_.end());
 
   // All objects should be proxy objects.
   DCHECK(ret->second.var->AsProxyObjectVar());
   return scoped_refptr<ProxyObjectVar>(ret->second.var->AsProxyObjectVar());
 }
 
 }  // namesace proxy
-}  // namespace pp
+}  // namespace ppapi