Post a Message from Java to JS

android_webview/browser/aw_message_port_message_filter.cc

Index: android_webview/browser/aw_message_port_message_filter.cc
diff --git a/android_webview/browser/aw_message_port_message_filter.cc b/android_webview/browser/aw_message_port_message_filter.cc
index 74b1aa5ffb9e45936e9faa12b34d28a1975bd6e2..60b143ed5c1659a5d14a402506ceb3e6302f79d2 100644
--- a/android_webview/browser/aw_message_port_message_filter.cc
+++ b/android_webview/browser/aw_message_port_message_filter.cc
@@ -30,26 +30,46 @@ bool AwMessagePortMessageFilter::OnMessageReceived(
     const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(AwMessagePortMessageFilter, message)
-    IPC_MESSAGE_FORWARD(AwMessagePortHostMsg_ConvertedMessage,
+    IPC_MESSAGE_FORWARD(AwMessagePortHostMsg_ConvertedWebToAppMessage,
                         AwBrowserContext::GetDefault()->GetMessagePortService(),
-                        AwMessagePortService::OnConvertedMessage)
+                        AwMessagePortService::OnConvertedWebToAppMessage)
+    IPC_MESSAGE_HANDLER(AwMessagePortHostMsg_ConvertedAppToWebMessage,
+                        OnConvertedAppToWebMessage)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
+void AwMessagePortMessageFilter::OnConvertedAppToWebMessage(
+    int msg_port_id,
+    const base::string16& message,
+    const std::vector<int>& sent_message_port_ids) {
+  MessagePortProvider::PostMessageToPort(msg_port_id, message,
+      sent_message_port_ids);
+}
+
 void AwMessagePortMessageFilter::OnDestruct() const {
   BrowserThread::DeleteOnIOThread::Destruct(this);
 }
 
+void AwMessagePortMessageFilter::SendAppToWebMessage(
+    int msg_port_route_id,
+    const base::string16& message,
+    const std::vector<int>& sent_message_port_ids) {
+  Send(new AwMessagePortMsg_AppToWebMessage(
+      route_id_,
+      msg_port_route_id, // same as the port id
+      message, sent_message_port_ids));
+}
+
 void AwMessagePortMessageFilter::SendMessage(
     int msg_port_route_id,
     const base::string16& message,
     const std::vector<int>& sent_message_port_ids) {
-  Send(new AwMessagePortMsg_Message(route_id_,
-                                    msg_port_route_id, // same as the port id
-                                    message,
-                                    sent_message_port_ids));
+  Send(new AwMessagePortMsg_WebToAppMessage(
+      route_id_,
+      msg_port_route_id, // same as the port id
+      message, sent_message_port_ids));
 }
 
 void AwMessagePortMessageFilter::SendMessagesAreQueued(int route_id) {