Chromium-side plumbing for ServiceWorker -> Document postMessage (2/3)

content/browser/message_port_message_filter.h

Index: content/browser/message_port_message_filter.h
diff --git a/content/browser/message_port_message_filter.h b/content/browser/message_port_message_filter.h
index 5cc191ec934e9e208404ded30a215abe35ea49b7..a324ad800098df15a34322c5630c17db8c9e8388 100644
--- a/content/browser/message_port_message_filter.h
+++ b/content/browser/message_port_message_filter.h
@@ -29,6 +29,12 @@ class CONTENT_EXPORT MessagePortMessageFilter : public BrowserMessageFilter {
 
   int GetNextRoutingID();
 
+  // Updates message ports registered for |message_port_ids| and returns
+  // new routing IDs for the updated ports via |new_routing_ids|.
+  void UpdateMessagePortsWithNewRoutes(
+      const std::vector<int>& message_port_ids,
+      std::vector<int>* new_routing_ids);
+
  protected:
   // This is protected, so we can define sub classes for testing.
   virtual ~MessagePortMessageFilter();