Post a Message from Java to 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 62 matching lines @@
   msp->Create(MSG_ROUTING_NONE, delegate, port2);
   // Update the routing number of the message ports to be equal to the message
   // port numbers.
   msp->UpdateMessagePort(*port1, delegate, *port1);
   msp->UpdateMessagePort(*port2, delegate, *port2);
   msp->Entangle(*port1, *port2);
   msp->Entangle(*port2, *port1);
 }
 
 // static
+void MessagePortProvider::PostMessageToPort(int sender_port_id,
+                                            const base::string16& message,
+                                            const std::vector<int>& ports) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  MessagePortService* msp = MessagePortService::GetInstance();
+  msp->PostMessage(sender_port_id, message, ports);
+}
+
+// static
 void MessagePortProvider::OnMessagePortDelegateClosing(
     MessagePortDelegate* delegate) {
   MessagePortService::GetInstance()->OnMessagePortDelegateClosing(delegate);
 }
 
 } // namespace content