Spoken feedback sounds for user photo capture/discard at image picker added.

chrome/browser/resources/options/chromeos/change_picture_options.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. */
 
 #user-images-area {
   display: -webkit-box;
 }
 
 #user-image-grid {
   -webkit-user-drag: none;
@@ skipping 43 matching lines @@
  */
 
 #user-image-preview {
   margin: 20px 10px 0 0;
   max-width: 220px;
   position: relative;
 }
 
 #user-image-preview .perspective-box {
   -webkit-perspective: 600px;
+  border: solid 1px #cacaca;
+  border-radius: 4px;
+  padding: 2px;
+  width: 220px;
 }
 
 #user-image-preview-img {
   background: white;
   border: solid 1px #cacaca;
   border-radius: 4px;
   max-height: 220px;
   max-width: 220px;
   padding: 2px;
 }
@@ skipping 112 matching lines @@
 }
 
 #user-image-attribution {
   -webkit-padding-start: 34px;
   line-height: 26px;
 }
 
 #user-image-author-website {
   -webkit-padding-start: 5px;
 }