Use the same blue solid border among tray and launcher, for focus.

ash/system/brightness/tray_brightness.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/brightness/tray_brightness.h"
 
 #include "ash/accelerators/accelerator_controller.h"
+#include "ash/ash_constants.h"
 #include "ash/shell.h"
 #include "ash/system/brightness/brightness_control_delegate.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_views.h"
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
 #include "grit/ash_resources.h"
 #include "grit/ash_strings.h"
@@ skipping 183 matching lines @@
     return;
 
   if (brightness_view_)
     SetDetailedViewCloseDelay(kTrayPopupAutoCloseDelayInSeconds);
   else
     PopupDetailedView(kTrayPopupAutoCloseDelayInSeconds, false);
 }
 
 }  // namespace internal
 }  // namespace ash