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

chrome/renderer/websharedworker_proxy.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/renderer/websharedworker_proxy.h"
 
 #include "chrome/common/render_messages.h"
 #include "chrome/common/webmessageportchannel_impl.h"
 #include "chrome/common/worker_messages.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebURL.h"
@@ skipping 49 matching lines @@
   Send(new WorkerMsg_Connect(route_id_, message_port_id, MSG_ROUTING_NONE));
   if (HasQueuedMessages()) {
     connect_listener_ = listener;
   } else {
     listener->connected();
     // The listener may free this object, so do not access the object after
     // this point.
   }
 }
 
-void WebSharedWorkerProxy::OnMessageReceived(const IPC::Message& message) {
+bool WebSharedWorkerProxy::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(WebSharedWorkerProxy, message)
     IPC_MESSAGE_HANDLER(ViewMsg_WorkerCreated, OnWorkerCreated)
+    IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
+  return handled;
 }
 
 void WebSharedWorkerProxy::OnWorkerCreated() {
   // The worker is created - now send off the CreateWorkerContext message and
   // any other queued messages
   SendQueuedMessages();
 
   // Inform any listener that the pending connect event has been sent
   // (this can result in this object being freed).
   if (connect_listener_) {
     connect_listener_->connected();
   }
 }