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

ipc/ipc_sync_channel_unittest.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.
 //
 // Unit test for SyncChannel.
 
 #include "ipc/ipc_sync_channel.h"
 
 #include <string>
 #include <vector>
@@ skipping 177 matching lines @@
 
     listener_thread_.message_loop()->PostTask(FROM_HERE, NewRunnableMethod(
         this, &Worker::OnListenerThreadShutdown2, listener_event));
   }
 
   void OnListenerThreadShutdown2(WaitableEvent* listener_event) {
     MessageLoop::current()->RunAllPending();
     listener_event->Signal();
   }
 
-  void OnMessageReceived(const Message& message) {
+  bool OnMessageReceived(const Message& message) {
     IPC_BEGIN_MESSAGE_MAP(Worker, message)
      IPC_MESSAGE_HANDLER_DELAY_REPLY(SyncChannelTestMsg_Double, OnDoubleDelay)
      IPC_MESSAGE_HANDLER_DELAY_REPLY(SyncChannelTestMsg_AnswerToLife,
                                      OnAnswerDelay)
      IPC_MESSAGE_HANDLER_DELAY_REPLY(SyncChannelNestedTestMsg_String,
                                      OnNestedTestMsg)
     IPC_END_MESSAGE_MAP()
+    return true;
   }
 
   void StartThread(base::Thread* thread, MessageLoop::Type type) {
     base::Thread::Options options;
     options.message_loop_type = type;
     thread->StartWithOptions(options);
   }
 
   scoped_ptr<WaitableEvent> done_;
   scoped_ptr<WaitableEvent> channel_created_;
@@ skipping 940 matching lines @@
   server.done_event()->Wait();
   server.done_event()->Reset();
 
   server.SendDummy();
   server.done_event()->Wait();
 
   EXPECT_FALSE(server.send_result());
 }