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

chrome/common/resource_dispatcher.h

 // 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.
 
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #ifndef CHROME_COMMON_RESOURCE_DISPATCHER_H__
 #define CHROME_COMMON_RESOURCE_DISPATCHER_H__
 #pragma once
 
 #include <deque>
 #include <string>
 
 #include "base/hash_tables.h"
 #include "base/linked_ptr.h"
 #include "base/shared_memory.h"
 #include "base/task.h"
 #include "ipc/ipc_channel.h"
 #include "webkit/glue/resource_loader_bridge.h"
 
 struct ResourceResponseHead;
 
 // This class serves as a communication interface between the
 // ResourceDispatcherHost in the browser process and the ResourceLoaderBridge in
 // the child process.  It can be used from any child process.
-class ResourceDispatcher {
+class ResourceDispatcher : public IPC::Channel::Listener {
  public:
   explicit ResourceDispatcher(IPC::Message::Sender* sender);
   ~ResourceDispatcher();
 
-  // Called to possibly handle the incoming IPC message.  Returns true if
-  // handled, else false.
+  // IPC::Channel::Listener implementation.
   bool OnMessageReceived(const IPC::Message& message);
 
   // Creates a ResourceLoaderBridge for this type of dispatcher, this is so
   // this can be tested regardless of the ResourceLoaderBridge::Create
   // implementation.
   webkit_glue::ResourceLoaderBridge* CreateBridge(
       const webkit_glue::ResourceLoaderBridge::RequestInfo& request_info,
       int host_renderer_id,
       int host_render_view_id);
 
@@ skipping 101 matching lines @@
 
   // All pending requests issued to the host
   PendingRequestList pending_requests_;
 
   ScopedRunnableMethodFactory<ResourceDispatcher> method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcher);
 };
 
 #endif  // CHROME_COMMON_RESOURCE_DISPATCHER_H__