Tracking push events for lucid sleep

extensions/browser/notification_types.h

Index: extensions/browser/notification_types.h
diff --git a/extensions/browser/notification_types.h b/extensions/browser/notification_types.h
index 6eee02e235b6e2f82c7c6d55c34b8e8498cb18f0..0508012e7309d706fc1e03758011c9fdedb01309 100644
--- a/extensions/browser/notification_types.h
+++ b/extensions/browser/notification_types.h
@@ -209,6 +209,16 @@ enum NotificationType {
   // Sent when there are new user scripts available.  The details are a
   // pointer to SharedMemory containing the new scripts.
   NOTIFICATION_USER_SCRIPTS_UPDATED,
+
+  // Sent when a message is dispatched to an extension renderer.  The source is
+  // a BrowserContext* the details are an EventRouter::DispatchDetails.
+  NOTIFICATION_EXTENSION_MESSAGE_DISPATCHED,
+
+  // Sent when a previously dispatched message is acked by the extension
+  // renderer.  The source is a BrowserContext* and the details are an int
+  // hoding the message id.

[Ken Rockot(use gerrit already), 2015/01/08 01:24:02]

nit: "holding" I assume

+  NOTIFICATION_EXTENSION_MESSAGE_ACKED,
+
   NOTIFICATION_EXTENSIONS_END
 };