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

chrome/service/service_ipc_server.cc

 // Copyright (c) 2009 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 "chrome/service/service_ipc_server.h"
 
 #include "chrome/common/service_messages.h"
 #include "chrome/service/cloud_print/cloud_print_proxy.h"
 #include "chrome/service/service_process.h"
 #include "ipc/ipc_logging.h"
 
 ServiceIPCServer::ServiceIPCServer(const std::string& channel_name)
     : channel_name_(channel_name), client_connected_(false) {
 }
 
 bool ServiceIPCServer::Init() {
 #ifdef IPC_MESSAGE_LOG_ENABLED
   IPC::Logging::current()->SetIPCSender(this);
 #endif
   sync_message_filter_ =
       new IPC::SyncMessageFilter(g_service_process->shutdown_event());
   CreateChannel();
   return true;
 }
 
 void ServiceIPCServer::CreateChannel() {
   channel_.reset(new IPC::SyncChannel(channel_name_,
-      IPC::Channel::MODE_SERVER, this, NULL,
+      IPC::Channel::MODE_SERVER, this,
       g_service_process->io_thread()->message_loop(), true,
       g_service_process->shutdown_event()));
   DCHECK(sync_message_filter_.get());
   channel_->AddFilter(sync_message_filter_.get());
 }
 
 ServiceIPCServer::~ServiceIPCServer() {
 #ifdef IPC_MESSAGE_LOG_ENABLED
   IPC::Logging::current()->SetIPCSender(NULL);
 #endif
@@ skipping 92 matching lines @@
 }
 
 void ServiceIPCServer::OnShutdown() {
   g_service_process->Shutdown();
 }
 
 void ServiceIPCServer::OnUpdateAvailable() {
   g_service_process->SetUpdateAvailable();
 }