Add bluetooth device type icons on MD system tray.

ash/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//ui/base/ui_features.gni")
 
 assert(use_aura)
@@ skipping 834 matching lines @@
     "//ui/base/ime",
     "//ui/compositor",
     "//ui/display",
     "//ui/display/types",
     "//ui/events",
     "//ui/events:events_base",
     "//ui/events:gesture_detection",
     "//ui/events/devices",
     "//ui/gfx",
     "//ui/gfx/geometry",
+    "//ui/gfx/vector_icons:vector_icons",
     "//ui/keyboard",
     "//ui/message_center",
     "//ui/native_theme",
     "//ui/platform_window",
     "//ui/platform_window/stub",
     "//ui/resources",
     "//ui/strings",
     "//ui/views",
     "//ui/wm",
     "//url",
@@ skipping 807 matching lines @@
   if (is_win) {
     configs -= [ "//build/config/win:console" ]
     configs += [ "//build/config/win:windowed" ]
     deps += [ "//sandbox" ]
   }
 
   if (is_chromeos) {
     deps += [ "//device/bluetooth" ]
   }
 }