Notify launcher page with onTransitionChanged event

ui/app_list/test/app_list_test_view_delegate.h

Index: ui/app_list/test/app_list_test_view_delegate.h
diff --git a/ui/app_list/test/app_list_test_view_delegate.h b/ui/app_list/test/app_list_test_view_delegate.h
index 0922134eec8f81f23ae9e7c5291579975ab1fc5c..377e458e03d55ef5a1d9af22b31b106a1ef2450d 100644
--- a/ui/app_list/test/app_list_test_view_delegate.h
+++ b/ui/app_list/test/app_list_test_view_delegate.h
@@ -66,6 +66,7 @@ class AppListTestViewDelegate : public AppListViewDelegate {
   base::TimeDelta GetAutoLaunchTimeout() override;
   void AutoLaunchCanceled() override;
   void ViewInitialized() override {}
+  void ViewReinitializedForProfileChange() override {}
   void Dismiss() override;
   void ViewClosing() override {}
   gfx::ImageSkia GetWindowIcon() override;