Update interstitials to match the new security indicators

components/security_interstitials/core/browser/resources/interstitial_v2.css

 /* Copyright 2014 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. */
 
 a {
   color: #585858;
 }
 
 .bad-clock .icon {
   background-image: -webkit-image-set(
@@ skipping 175 matching lines @@
 }
 
 .safe-browsing button:hover {
   box-shadow: 0 2px 3px rgba(0, 0, 0, .5);
 }
 
 .safe-browsing .error-code {
   display: none;
 }
 
-.safe-browsing .icon {
+.safe-browsing .new-icons {
+  background-image: -webkit-image-set(
+      url(images/1x/triangle_white.png) 1x,
+      url(images/2x/triangle_white.png) 2x);
+}
+
+.safe-browsing .old-icons {
   background-image: -webkit-image-set(
       url(images/1x/stop_sign.png) 1x,
       url(images/2x/stop_sign.png) 2x);
 }
 
 .small-link {
   color: #696969;
   font-size: .875em;
 }
 
-.ssl .icon {
+.ssl .new-icons {
+  background-image: -webkit-image-set(
+      url(images/1x/triangle_red.png) 1x,
+      url(images/2x/triangle_red.png) 2x);
+}
+
+.ssl .old-icons {
   background-image: -webkit-image-set(
       url(images/1x/brokenssl_red.png) 1x,
       url(images/2x/brokenssl_red.png) 2x);
 }
 
 .captive-portal .icon {
   background-image: -webkit-image-set(
       url(images/1x/captive_portal_page_icon.png) 1x,
       url(images/2x/captive_portal_page_icon.png) 2x);
 }
@@ skipping 409 matching lines @@
     width: 100%;
   }
 }
 
 @media (max-width: 239px) and (orientation: portrait) {
   .nav-wrapper {
     padding-left: 0;
     padding-right: 0;
   }
 }