Add update menu item and app menu icon badge

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index dd3637140a27332fc447d4cf899bbd269bc1e1e7..e934a131f3d896eae3437e57fec3616b2bff4e30 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -2171,4 +2171,10 @@ const char kBackgroundTracingLastUpload[] = "background_tracing.last_upload";
 const char kAllowDinosaurEasterEgg[] =
     "allow_dinosaur_easter_egg";
 
+#if defined(OS_ANDROID)
+// Whether the update menu item was clicked. Used to facilitate logging whether
+// Chrome was updated after the menu item is clicked.
+const char kClickedUpdateMenuItem[] = "omaha.clicked_update_menu_item";
+#endif
+
 }  // namespace prefs