ash: Add a bluetooth entry in the uber tray.

ash/system/tray/tray_constants.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/tray_constants.h"
 
 #include "third_party/skia/include/core/SkColor.h"
 
 namespace ash {
 
 const int kTrayPaddingBetweenItems = 8;
 const int kTrayPopupAutoCloseDelayInSeconds = 2;
-extern const int kTrayPopupPaddingHorizontal = 18;
+const int kTrayPopupPaddingHorizontal = 18;
 const int kTrayPopupPaddingBetweenItems = 5;
 
+const int kTrayPopupDetailsIconWidth = 27;
+
 const SkColor kBackgroundColor = SK_ColorWHITE;
 const SkColor kHoverBackgroundColor = SkColorSetRGB(0xfb, 0xfc, 0xfb);
 
 const int kTrayPopupWidth = 300;
 
 }  // namespace ash