Properly queue messages sent to message ports that are transferred to a service worker.

content/child/webmessageportchannel_impl.cc

 // Copyright (c) 2011 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 "content/child/webmessageportchannel_impl.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "content/child/child_process.h"
 #include "content/child/child_thread.h"
@@ skipping 147 matching lines @@
   if (!child_thread_loop_->BelongsToCurrentThread()) {
     child_thread_loop_->PostTask(
         FROM_HERE, base::Bind(&WebMessagePortChannelImpl::Init, this));
     return;
   }
 
   if (route_id_ == MSG_ROUTING_NONE) {
     DCHECK(message_port_id_ == MSG_ROUTING_NONE);
     Send(new MessagePortHostMsg_CreateMessagePort(
         &route_id_, &message_port_id_));
+  } else if (message_port_id_ != MSG_ROUTING_NONE) {
+    Send(new MessagePortHostMsg_ReleaseMessages(message_port_id_));
   }
 
   ChildThread::current()->GetRouter()->AddRoute(route_id_, this);
 }
 
 void WebMessagePortChannelImpl::Entangle(
     scoped_refptr<WebMessagePortChannelImpl> channel) {
   // The message port ids might not be set up yet, if this channel wasn't
   // created on the main thread.  So need to wait until we're on the main thread
   // before getting the other message port id.
@@ skipping 98 matching lines @@
 
   Release();
   ChildProcess::current()->ReleaseProcess();
 }
 
 WebMessagePortChannelImpl::Message::Message() {}
 
 WebMessagePortChannelImpl::Message::~Message() {}
 
 }  // namespace content