[Android] Use fallback icon if there is no large favicon on the history page

ui/webui/resources/js/cr.js

 // 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.
 
 /**
  * The global object.
  * @type {!Object}
  * @const
  */
 var global = this;
@@ skipping 412 matching lines @@
 
     /** Whether this is on chromeOS or not. */
     get isChromeOS() {
       return /CrOS/.test(navigator.userAgent);
     },
 
     /** Whether this is on vanilla Linux (not chromeOS). */
     get isLinux() {
       return /Linux/.test(navigator.userAgent);
     },
+
+    /** Whether this is on Android. */
+    get isAndroid() {
+      return /Android/.test(navigator.userAgent);
+    }
   };
 }();