Enable messaging over a navigator.connect initiated channel.

content/browser/message_port_message_filter.cc

Index: content/browser/message_port_message_filter.cc
diff --git a/content/browser/message_port_message_filter.cc b/content/browser/message_port_message_filter.cc
index c6e979e879aa6803ceb9071eff7c605e78985f78..84cff10351684db5a2e3933799fa08636e8b5e58 100644
--- a/content/browser/message_port_message_filter.cc
+++ b/content/browser/message_port_message_filter.cc
@@ -19,7 +19,7 @@ MessagePortMessageFilter::~MessagePortMessageFilter() {
 }
 
 void MessagePortMessageFilter::OnChannelClosing() {
-  MessagePortService::GetInstance()->OnMessagePortMessageFilterClosing(this);
+  MessagePortService::GetInstance()->OnMessagePortDelegateClosing(this);
 }
 
 bool MessagePortMessageFilter::OnMessageReceived(const IPC::Message& message) {
@@ -59,6 +59,23 @@ int MessagePortMessageFilter::GetNextRoutingID() {
   return next_routing_id_.Run();
 }
 
+void MessagePortMessageFilter::SendMessage(
+    int route_id,
+    const base::string16& message,
+    const std::vector<int>& sent_message_port_ids) {
+  // If a message port was sent around, the new location will need a routing

[scheib, 2014/12/18 00:24:10]

This code block is more indirect now that a nesting of two helpers are doing the
work. The comment helps, but may be clearer as:

When |sent_message_port_ids| is non-empty generate and send |new_routing_ids| to
avoid waiting for the created ports to send a sync message with routing ids.

[Marijn Kruisselbrink, 2014/12/19 00:09:21]

Okay, slightly rephrased the comment.

+  // id.  Instead of having the created port send us a sync message to get it,
+  // send along with the message.
+  std::vector<int> new_routing_ids;
+  UpdateMessagePortsWithNewRoutes(sent_message_port_ids, &new_routing_ids);
+  Send(new MessagePortMsg_Message(route_id, message, sent_message_port_ids,
+                                  new_routing_ids));
+}
+
+void MessagePortMessageFilter::SendMessagesAreQueued(int route_id) {
+  Send(new MessagePortMsg_MessagesQueued(route_id));
+}
+
 void MessagePortMessageFilter::UpdateMessagePortsWithNewRoutes(
     const std::vector<int>& message_port_ids,
     std::vector<int>* new_routing_ids) {