Make IPC::Channel::Listener:OnMessageReceived have a return value indicating ...

chrome/plugin/plugin_thread.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 "chrome/plugin/plugin_thread.h"
 
 #include "build/build_config.h"
 
 #if defined(USE_X11)
 #include <gtk/gtk.h>
@@ skipping 110 matching lines @@
   if (webkit_glue::ShouldForcefullyTerminatePluginProcess())
     base::KillProcess(base::GetCurrentProcessHandle(), 0, /* wait= */ false);
 
   lazy_tls.Pointer()->Set(NULL);
 }
 
 PluginThread* PluginThread::current() {
   return lazy_tls.Pointer()->Get();
 }
 
-void PluginThread::OnControlMessageReceived(const IPC::Message& msg) {
+bool PluginThread::OnControlMessageReceived(const IPC::Message& msg) {
+  bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PluginThread, msg)
     IPC_MESSAGE_HANDLER(PluginProcessMsg_CreateChannel, OnCreateChannel)
     IPC_MESSAGE_HANDLER(PluginProcessMsg_PluginMessage, OnPluginMessage)
     IPC_MESSAGE_HANDLER(PluginProcessMsg_NotifyRenderersOfPendingShutdown,
                         OnNotifyRenderersOfPendingShutdown)
+    IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
+  return handled;
 }
 
 void PluginThread::OnCreateChannel(int renderer_id,
                                    bool off_the_record) {
   scoped_refptr<PluginChannel> channel(PluginChannel::GetPluginChannel(
       renderer_id, ChildProcess::current()->io_message_loop()));
   IPC::ChannelHandle channel_handle;
   if (channel.get()) {
     channel_handle.name = channel->channel_handle().name;
 #if defined(OS_POSIX)
@@ skipping 77 matching lines @@
   }
 
   if (!result || net_error != net::OK)
     return false;
 
   *proxy_list = proxy_result;
   return true;
 }
 
 }  // namespace webkit_glue