Post a Message from Java to JS

content/browser/message_port_provider.cc

Index: content/browser/message_port_provider.cc
diff --git a/content/browser/message_port_provider.cc b/content/browser/message_port_provider.cc
index 0fd141db519f56fb9a743c3ebb2d455d428993cb..faa251154715525ac04820acaf7fc9bacff719bf 100644
--- a/content/browser/message_port_provider.cc
+++ b/content/browser/message_port_provider.cc
@@ -80,6 +80,15 @@ void MessagePortProvider::CreateMessageChannel(MessagePortDelegate* delegate,
 }
 
 // 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);