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

chrome/renderer/webworker_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/webworker_proxy.h"
 
 #include "chrome/common/child_thread.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/webmessageportchannel_impl.h"
 #include "chrome/common/worker_messages.h"
@@ skipping 66 matching lines @@
 }
 
 void WebWorkerProxy::workerObjectDestroyed() {
   Send(new WorkerMsg_WorkerObjectDestroyed(route_id_));
   delete this;
 }
 
 void WebWorkerProxy::clientDestroyed() {
 }
 
-void WebWorkerProxy::OnMessageReceived(const IPC::Message& message) {
+bool WebWorkerProxy::OnMessageReceived(const IPC::Message& message) {
   if (!client_)
-    return;
+    return false;
 
+  bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(WebWorkerProxy, message)
     IPC_MESSAGE_HANDLER(ViewMsg_WorkerCreated, OnWorkerCreated)
     IPC_MESSAGE_HANDLER(WorkerMsg_PostMessage, OnPostMessage)
     IPC_MESSAGE_FORWARD(WorkerHostMsg_PostExceptionToWorkerObject,
                         client_,
                         WebWorkerClient::postExceptionToWorkerObject)
     IPC_MESSAGE_HANDLER(WorkerHostMsg_PostConsoleMessageToWorkerObject,
                         OnPostConsoleMessageToWorkerObject)
     IPC_MESSAGE_FORWARD(WorkerHostMsg_ConfirmMessageFromWorkerObject,
                         client_,
                         WebWorkerClient::confirmMessageFromWorkerObject)
     IPC_MESSAGE_FORWARD(WorkerHostMsg_ReportPendingActivity,
                         client_,
                         WebWorkerClient::reportPendingActivity)
     IPC_MESSAGE_FORWARD(WorkerHostMsg_WorkerContextDestroyed,
                         static_cast<WebCommonWorkerClient*>(client_),
                         WebCommonWorkerClient::workerContextDestroyed)
+    IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
+  return handled;
 }
 
 void WebWorkerProxy::OnWorkerCreated() {
   // The worker is created - now send off the CreateWorkerContext message and
   // any other queued messages
   SendQueuedMessages();
 }
 
 void WebWorkerProxy::OnPostMessage(
     const string16& message,
     const std::vector<int>& sent_message_port_ids,
     const std::vector<int>& new_routing_ids) {
   DCHECK(new_routing_ids.size() == sent_message_port_ids.size());
   WebMessagePortChannelArray channels(sent_message_port_ids.size());
   for (size_t i = 0; i < sent_message_port_ids.size(); ++i) {
     channels[i] = new WebMessagePortChannelImpl(
         new_routing_ids[i], sent_message_port_ids[i]);
   }
 
   client_->postMessageToWorkerObject(message, channels);
 }
 
 void WebWorkerProxy::OnPostConsoleMessageToWorkerObject(
       const WorkerHostMsg_PostConsoleMessageToWorkerObject_Params& params) {
   client_->postConsoleMessageToWorkerObject(params.source_identifier,
       params.message_type, params.message_level,
       params.message, params.line_number, params.source_url);
 }