Revert 171609

ash/system/tray_accessibility.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/system/tray_accessibility.h"
 
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/tray/system_tray_delegate.h"
@@ skipping 277 matching lines @@
 
   if (tray_view())
     tray_view()->SetVisible(GetInitialVisibility());
 }
 
 void TrayAccessibility::OnAccessibilityModeChanged() {
   if (tray_view())
     tray_view()->SetVisible(GetInitialVisibility());
 
   bool accessibility_enabled = IsAnyAccessibilityFeatureEnabled();
-  if (!accessibility_previously_enabled_ && accessibility_enabled) {
+  if (!accessibility_previously_enabled_ && accessibility_enabled &&
+      login_ != user::LOGGED_IN_NONE) {
     // Shows popup if the accessibilty status is being changed to true from
     // false.
     request_popup_view_ = true;
     PopupDetailedView(kTrayPopupAutoCloseDelayForTextInSeconds, false);
   } else if (detailed_) {
     detailed_->GetWidget()->Close();
   }
 
   accessibility_previously_enabled_ = accessibility_enabled;
 }
 
 }  // namespace internal
 }  // namespace ash