Tracking push events for lucid sleep

extensions/browser/event_router.h

Index: extensions/browser/event_router.h
diff --git a/extensions/browser/event_router.h b/extensions/browser/event_router.h
index 15f0565d056a598b1c7dda8afc721d6a5be0d39b..ad8c24eb8013537a15e7feff24a48d253290d60c 100644
--- a/extensions/browser/event_router.h
+++ b/extensions/browser/event_router.h
@@ -71,6 +71,22 @@ class EventRouter : public content::NotificationObserver,
     virtual void OnListenerRemoved(const EventListenerInfo& details) {}
   };
 
+  // Struct that is sent along with a NOTIFICATION_EXTENSION_MESSAGE_DISPATCHED.
+  // |event_name_| is the name of the event being dispatched and |message_id_|
+  // is a unique identifier associated with the message sent to the extension
+  // renderer.  |extension_id_| is the id of the extension that the message is
+  // being dispatched to.
+  struct DispatchDetails {
+    DispatchDetails(const std::string& extension_id,
+                    const std::string& event_name,
+                    int message_id);
+    ~DispatchDetails();
+
+    const std::string extension_id_;
+    const std::string event_name_;
+    const int message_id_;
+  };
+
   // Gets the EventRouter for |browser_context|.
   // Shorthand for ExtensionSystem::Get(browser_context)->event_router(); it's
   // a very common operation.