Convert the PluginResource to be refcounted.

ppapi/proxy/ppb_broker_proxy.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/ppb_broker_proxy.h"
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/trusted/ppb_broker_trusted.h"
 #include "ppapi/proxy/enter_proxy.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
@@ skipping 163 matching lines @@
   PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
   if (!dispatcher)
     return 0;
 
   HostResource result;
   dispatcher->Send(new PpapiHostMsg_PPBBroker_Create(
       INTERFACE_ID_PPB_BROKER, instance, &result));
   if (result.is_null())
     return 0;
 
-  linked_ptr<Broker> object(new Broker(result));
-  return PluginResourceTracker::GetInstance()->AddResource(object);
+  return PluginResourceTracker::GetInstance()->AddResource(new Broker(result));
 }
 
 bool PPB_Broker_Proxy::OnMessageReceived(const IPC::Message& msg) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PPB_Broker_Proxy, msg)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBBroker_Create, OnMsgCreate)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBBroker_Connect, OnMsgConnect)
     IPC_MESSAGE_HANDLER(PpapiMsg_PPBBroker_ConnectComplete,
                         OnMsgConnectComplete)
     IPC_MESSAGE_UNHANDLED(handled = false)
@@ skipping 74 matching lines @@
       // The easiest way to clean it up is to just put it in an object
       // and then close it. This failure case is not performance critical.
       // The handle could still leak if Send succeeded but the IPC later failed.
       base::SyncSocket temp_socket(
           IPC::PlatformFileForTransitToPlatformFile(foreign_socket_handle));
   }
 }
 
 }  // namespace proxy
 }  // namespace pp