Inconsistent use of [x] close panel icon. Code changes.

chrome/browser/resources/options/options_page.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 {
   position: relative;
 }
 
 #main-content {
   bottom: 0;
@@ skipping 259 matching lines @@
   -webkit-box-flex: 1;
   -webkit-padding-end: 5px;
   display: -webkit-box;
 }
 
 list .row-delete-button {
   -webkit-transition: 150ms opacity;
   background-color: transparent;
   /* TODO(stuartmorgan): Replace with real images once they are available. */
   background-image: -webkit-image-set(
-      url('../../../../ui/resources/default_100_percent/close_bar.png') 1x,
-      url('../../../../ui/resources/default_200_percent/close_bar.png') 2x);
+      url('../../../../ui/resources/default_100_percent/close_2.png') 1x,
+      url('../../../../ui/resources/default_200_percent/close_2.png') 2x);
   border: none;
   display: block;
   height: 16px;
   opacity: 1;
   width: 16px;
 }
 
 list > *:not(:hover):not([selected]):not([lead]) .row-delete-button,
 list:not([hasElementFocus]) > *:not(:hover):not([selected]) .row-delete-button,
 list[disabled] .row-delete-button,
 list .row-delete-button[disabled] {
   opacity: 0;
   pointer-events: none;
 }
 
 /* HostedApp entries use the disabled closing button to display the App's
  * favicon, as an indicator that instead of deleting the permission here
  * the user has to remove the hosted app.*/
 list div[role='listitem'][managedby='HostedApp'] .row-delete-button {
   opacity: 1;
 }
 
 list .row-delete-button:hover {
   background-image: -webkit-image-set(
-      url('../../../../ui/resources/default_100_percent/close_bar_hover.png')
-          1x,
-      url('../../../../ui/resources/default_200_percent/close_bar_hover.png')
-          2x);
+      url('../../../../ui/resources/default_100_percent/close_2_hover.png') 1x,
+      url('../../../../ui/resources/default_200_percent/close_2_hover.png') 2x);
 }
 
 list .row-delete-button:active {
   background-image: -webkit-image-set(
-      url('../../../../ui/resources/default_100_percent/close_bar_pressed.png')
+      url('../../../../ui/resources/default_100_percent/close_2_pressed.png')
           1x,
-      url('../../../../ui/resources/default_200_percent/close_bar_pressed.png')
+      url('../../../../ui/resources/default_200_percent/close_2_pressed.png')
           2x);
 }
 
 list .static-text {
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
 
 list[type='text'][inlineeditable] input {
@@ skipping 214 matching lines @@
       url('chrome://theme/IDR_CONTROLLED_SETTING_RECOMMENDED_LARGE');
 }
 
 html[dir='rtl'] .controlled-setting-bubble-content {
   background-position: right top;
 }
 
 .controlled-setting-bubble-action {
   padding: 0 !important;
 }