arc: Disable shelf item creation when secondary user is active.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.cc

Index: chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.cc
diff --git a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.cc b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.cc
index bd928062a6e53fa35f01f99f5401876fec331e21..f5c7f1a193bcfae82d5a98f29ebf1cd74d73df23 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.cc
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.cc
@@ -1595,6 +1595,10 @@ void ChromeLauncherControllerImpl::AttachProfile(Profile* profile) {
     app_service->AddObserverAndStart(this);
 }
 
+void ChromeLauncherControllerImpl::SetProfileForTest(Profile* profile) {
+  profile_ = profile;
+}
+
 void ChromeLauncherControllerImpl::ReleaseProfile() {
   if (app_sync_ui_state_)
     app_sync_ui_state_->RemoveObserver(this);