Implement receiving transferred ports from JS

content/browser/message_port_provider.cc

 // Copyright 2014 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/public/browser/message_port_provider.h"
 
 #include "base/basictypes.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/message_port_message_filter.h"
 #include "content/browser/message_port_service.h"
@@ skipping 81 matching lines @@
   MessagePortService* msp = MessagePortService::GetInstance();
   msp->ReleaseMessages(message_port_id);
 }
 
 // static
 void MessagePortProvider::OnMessagePortDelegateClosing(
     MessagePortDelegate* delegate) {
   MessagePortService::GetInstance()->OnMessagePortDelegateClosing(delegate);
 }
 
+// static
+void MessagePortProvider::UpdateMessagePort(int message_port_id,
+                                            MessagePortDelegate* delegate) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  MessagePortService::GetInstance()->UpdateMessagePort(message_port_id,
+                                                       delegate,
+                                                       message_port_id);
+}
+
 } // namespace content