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

chrome/renderer/resources/plugin_placeholders.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 {
   font-family: sans-serif;
   margin: 0;
   overflow: hidden;
   text-align: center;
   -webkit-user-select: none;
@@ skipping 42 matching lines @@
 <if expr="not pp_ifdef('android')">
   visibility: hidden;
 </if>
   cursor: pointer;
   position: absolute;
   right: 3px;
   top: 3px;
   height: 14px;
   width: 14px;
   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);
   background-position: right top;
   background-repeat: no-repeat;
 }
 
 #close: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);
 }
 
 #close:active {
   background-image: -webkit-image-set(
-      url('../../../ui/resources/default_100_percent/close_bar_pressed.png') 1x,
-      url('../../../ui/resources/default_200_percent/close_bar_pressed.png')
-          2x);
+      url('../../../ui/resources/default_100_percent/close_2_pressed.png') 1x,
+      url('../../../ui/resources/default_200_percent/close_2_pressed.png') 2x);
 }