Update icons for network settings.

chrome/browser/resources/options2/browser_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. */
 
 #change-home-page-section {
   margin-left: 30px;
 }
 
 #home-page-url {
   display: inline-block;
@@ skipping 169 matching lines @@
 }
 
 .network-wifi {
   background-image: url('chrome://theme/IDR_STATUSBAR_NETWORK_ARCS');
 }
 
 .network-cellular {
   background-image: url('chrome://theme/IDR_STATUSBAR_NETWORK_BARS');
 }
 
+.network-vpn {
+  background-image: url('chrome://theme/IDR_STATUSBAR_VPN');
+}
+
 .network-add-connection,
 .network-control-active,
 .network-control-inactive {
   background-position: center center !important;
   background-repeat: no-repeat;
 }
 
 /* TODO(kevers): Update following URLs once resources are available */
 
 .network-add-connection {
   background-image: url('chrome://theme/IDR_SIDETABS_NEW_TAB');
 }
 
 .network-control-inactive {
   background-image: none;
 }
 
 .network-control-active {
   background-image: url('chrome://theme/IDR_PROFILE_SELECTED');
 }
 
 .network-options-button {
   -webkit-box-flex: 0;
   -webkit-transform: scale(0.6);
-  background-image: url('chrome://theme/IDR_INFOBAR_QUESTION_MARK');
+  background-image: none;
   background-position: center center;
   display: block;
+  opacity: 0.5;
   vertical-align: middle;
   width: 19px;
 }
 
+.network-menu-item:hover .network-options-button {
+  background-image: url('chrome://theme/IDR_STATUSBAR_EDIT');
+}
+
 .network-group > .controlled-setting-indicator,
 .network-menu-item > .controlled-setting-indicator {
   -webkit-box-flex: 0;
   -webkit-margin-end: 5px;
   display: block;
   height: 16px;
   margin-top: 9px;
   width: 16px;
 }
 
 .network-group > .controlled-setting-indicator {
   margin-top: 0;
 }
 
 .network-options-button:hover {
-  /* TODO(kevers): Update once proper assets received for the options
-     button. */
-  border: 2px solid #333;
-  border-radius: 10px;
+  opacity: 1;
+}
+
+@-webkit-keyframes vpn-connecting-animation {
+  from {
+    opacity: 1;
+  }
+  to {
+    opacity: 0.2;
+  }
 }
 
 .network-connecting {
   -webkit-animation: connecting-animation 1s step-end infinite;
 }
 
+.network-vpn.network-connecting {
+  -webkit-animation: vpn-connecting-animation 500ms alternate infinite;
+}
+
 .network-title {
   font-weight: 600;
   line-height: 120%;
 }
 
 .network-subtitle {
   color: #333;
   display: inline-block;
   line-height: 100%;
   max-width: 260px;
@@ skipping 106 matching lines @@
 }
 
 .sliding {
   -webkit-transition: height 200ms;
   overflow-y: hidden;
 }
 
 #sessionRestoreOverlay {
   width: 500px;
 }