Implement ServiceWorker::postMessage() [Chromium]

content/child/webmessageportchannel_impl.h

Index: content/child/webmessageportchannel_impl.h
diff --git a/content/child/webmessageportchannel_impl.h b/content/child/webmessageportchannel_impl.h
index e737fc31fe3976b0076eed07def99a3ab2dd5e03..6ed3c34e0db52bf8fe2e24c420ed9ba5214e3a44 100644
--- a/content/child/webmessageportchannel_impl.h
+++ b/content/child/webmessageportchannel_impl.h
@@ -33,6 +33,9 @@ class WebMessagePortChannelImpl
                             int message_port_id,
                             base::MessageLoopProxy* child_thread_loop);
 
+  static void ExtractMessagePortIDs(blink::WebMessagePortChannelArray* channels,
+                                    std::vector<int>* message_port_ids);
+
   // Queues received and incoming messages until there are no more in-flight
   // messages, then sends all of them to the browser process.
   void QueueMessages();