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

chrome/browser/resources/downloads/downloads.css

 /* 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. */
 
 body {
   margin: 10px 10px 34px 10px;
 }
 
 .header {
   clear: both;
@@ skipping 83 matching lines @@
 }
 
 html[dir=rtl] .icon {
   left: auto;
   right: 9px;
 }
 
 .download.otr > .safe,
 .download.otr > .show-dangerous {
   -webkit-transition: opacity 150ms;
-  background: url('../shared/images/otr_icon_standalone.png')
+  background: url('../../../../ui/webui/resources/images/otr_icon_standalone.png')
               no-repeat right bottom;
   opacity: .66;
 }
 
 html[dir=rtl] .download.otr > .safe,
 html[dir=rtl] .download.otr > .show-dangerous {
   background-position: left bottom;
 }
 
 .download.otr > .safe:hover,
@@ skipping 49 matching lines @@
 
 .controls a {
   -webkit-margin-end: 16px;
   color: #777;
 }
 
 #downloads-pagination {
   -webkit-margin-start: 18px;
   padding-top: 24px;
 }