Filter out ARC notifiers that are not shown in launcher.

chrome/browser/notifications/arc_application_notifier_source_chromeos.cc

Index: chrome/browser/notifications/arc_application_notifier_source_chromeos.cc
diff --git a/chrome/browser/notifications/arc_application_notifier_source_chromeos.cc b/chrome/browser/notifications/arc_application_notifier_source_chromeos.cc
index 108a74cbf30dd5a7d23c7812afce7f7e3cfcd6a6..6e744276cface32a636dea2e2b5cb739ac2acc57 100644
--- a/chrome/browser/notifications/arc_application_notifier_source_chromeos.cc
+++ b/chrome/browser/notifications/arc_application_notifier_source_chromeos.cc
@@ -52,6 +52,10 @@ ArcApplicationNotifierSourceChromeOS::GetNotifierList(Profile* profile) {
     if (package_to_app_ids_.count(app->package_name))
       continue;
 
+    const auto package = app_list->GetPackage(app->package_name);
+  if (!package || package->system)
+    continue;

[xiyuan, 2016/06/30 14:43:03]

nit: wrong indent ?

[hirono, 2016/07/01 07:19:05]

Done.

+
     // Load icons for notifier.
     std::unique_ptr<ArcAppIcon> icon(
         new ArcAppIcon(profile, app_id,