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

chrome/common/message_router.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef CHROME_COMMON_MESSAGE_ROUTER_H__
 #define CHROME_COMMON_MESSAGE_ROUTER_H__
 #pragma once
 
 #include "base/id_map.h"
 #include "ipc/ipc_channel.h"
@@ skipping 16 matching lines @@
 // The MessageRouter can be used as a concrete class provided its Send method
 // is not called and it does not receive any control messages.
 
 class MessageRouter : public IPC::Channel::Listener,
                       public IPC::Message::Sender {
  public:
   MessageRouter();
   virtual ~MessageRouter();
 
   // Implemented by subclasses to handle control messages
-  virtual void OnControlMessageReceived(const IPC::Message& msg);
+  virtual bool OnControlMessageReceived(const IPC::Message& msg);
 
   // IPC::Channel::Listener implementation:
-  virtual void OnMessageReceived(const IPC::Message& msg);
+  virtual bool OnMessageReceived(const IPC::Message& msg);
 
   // Like OnMessageReceived, except it only handles routed messages.  Returns
   // true if the message was dispatched, or false if there was no listener for
   // that route id.
   virtual bool RouteMessage(const IPC::Message& msg);
 
   // IPC::Message::Sender implementation:
   virtual bool Send(IPC::Message* msg);
 
   // Called to add/remove a listener for a particular message routing ID.
   void AddRoute(int32 routing_id, IPC::Channel::Listener* listener);
   void RemoveRoute(int32 routing_id);
 
   IPC::Channel::Listener* ResolveRoute(int32 routing_id);
 
  private:
   // A list of all listeners with assigned routing IDs.
   IDMap<IPC::Channel::Listener> routes_;
 
   DISALLOW_COPY_AND_ASSIGN(MessageRouter);
 };
 
 #endif  // CHROME_COMMON_MESSAGE_ROUTER_H__