Add a base class for objects that want to filter messages on the UI thread. ...

ppapi/proxy/dispatcher.cc

 // Copyright (c) 2010 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/dispatcher.h"
 
 #include <string.h>  // For memset.
 
 #include <map>
 
@@ skipping 55 matching lines @@
 
 Dispatcher::~Dispatcher() {
 }
 
 bool Dispatcher::InitWithChannel(MessageLoop* ipc_message_loop,
                                  const std::string& channel_name,
                                  bool is_client,
                                  base::WaitableEvent* shutdown_event) {
   IPC::Channel::Mode mode = is_client ? IPC::Channel::MODE_CLIENT
                                       : IPC::Channel::MODE_SERVER;
-  channel_.reset(new IPC::SyncChannel(channel_name, mode, this, NULL,
+  channel_.reset(new IPC::SyncChannel(channel_name, mode, this,
                                       ipc_message_loop, false, shutdown_event));
   return true;
 }
 
 void Dispatcher::OnMessageReceived(const IPC::Message& msg) {
   // Control messages.
   if (msg.routing_id() == MSG_ROUTING_CONTROL) {
     IPC_BEGIN_MESSAGE_MAP(Dispatcher, msg)
       IPC_MESSAGE_HANDLER(PpapiMsg_DeclareInterfaces,
                           OnMsgDeclareInterfaces)
@@ skipping 161 matching lines @@
     return new PPB_Var_Deprecated_Proxy(this, interface_functions);
   if (interface_name == PPP_INSTANCE_INTERFACE)
     return new PPP_Instance_Proxy(this, interface_functions);
 
   return NULL;
 }
 
 }  // namespace proxy
 }  // namespace pp