Move webui resources from chrome\browser\resources\shared to ui\webui\resources.

chrome/browser/resources/shared/css/chromeos/ui_account_tweaks.css

Index: chrome/browser/resources/shared/css/chromeos/ui_account_tweaks.css
===================================================================
--- chrome/browser/resources/shared/css/chromeos/ui_account_tweaks.css	(revision 177292)
+++ chrome/browser/resources/shared/css/chromeos/ui_account_tweaks.css	(working copy)
@@ -1,16 +0,0 @@
-/* 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.
- */
-
-/* This file defines styles for internal page elements that have special
- * look and feel based on account status (owner/non-owner/guest).
- */
-
-.guest-disabled {
-  color: #999;
-}
-
-a.guest-disabled {
-  opacity: 0.75;
-}