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

chrome/plugin/plugin_channel_base.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/plugin/plugin_channel_base.h"
 
 #include <stack>
 
 #include "base/auto_reset.h"
 #include "base/hash_tables.h"
@@ skipping 97 matching lines @@
   if (iter == npobject_listeners_.end()) {
     DLOG(WARNING) << "Invalid route id passed in:" << route_id;
     return NULL;
   }
   return iter->second;
 }
 
 bool PluginChannelBase::Init(MessageLoop* ipc_message_loop,
                              bool create_pipe_now) {
   channel_.reset(new IPC::SyncChannel(
-      channel_name_, mode_, this, NULL, ipc_message_loop, create_pipe_now,
+      channel_name_, mode_, this, ipc_message_loop, create_pipe_now,
       ChildProcess::current()->GetShutDownEvent()));
   channel_valid_ = true;
   return true;
 }
 
 bool PluginChannelBase::Send(IPC::Message* message) {
   if (!channel_.get()) {
     delete message;
     return false;
   }
@@ skipping 110 matching lines @@
 }
 
 void PluginChannelBase::OnChannelError() {
 #if defined(OS_POSIX)
   if (channel_valid()) {
     IPC::RemoveAndCloseChannelSocket(channel_name());
   }
 #endif
   channel_valid_ = false;
 }