Fix GN ui_unittests dependency for Chrome OS.

ui/base/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/ui.gni")
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
 }
@@ skipping 878 matching lines @@
     sources += [
       "../chromeos/network/network_state_notifier_unittest.cc",
       "../chromeos/touch_exploration_controller_unittest.cc",
     ]
     sources -= [
       "dragdrop/os_exchange_data_provider_aurax11_unittest.cc",
       "x/selection_requestor_unittest.cc",
     ]
     deps += [
       "//chromeos",
-      "//chromeos/resources",
-      "//chromeos/strings",
       "//ui/aura:test_support",
+      "//ui/chromeos/resources",
+      "//ui/chromeos/strings",
+      "//ui/chromeos:ui_chromeos",
       "//ui/events:gesture_detection",
-      "//ui/chromeos:ui_chromeos",
       "//ui/message_center:message_center",
     ]
   }
 }
 }
 # TODO(GYP) Mac (ui_unittest_bundle) and Android (ui_unittests_apk).