MD Downloads: fix clear all keyboard shortcut on Mac

chrome/browser/resources/md_downloads/crisper.js

 // Copyright (c) 2013 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.
 
 /**
  * @fileoverview Assertion support.
  */
 
 /**
  * Verify |condition| is truthy and return |condition| if so.
@@ skipping 10554 matching lines @@
     }
 
     this.setValue('');
     this.$.searchInput.blur();
   },
 
   /** @private */
   toggleShowingSearch_: function() {
     this.showingSearch = !this.showingSearch;
   },
+
+  /** @return {boolean} */
+  isSearchFocused: function() {
+    return this.$.searchTerm.focused;
+  }
 };
 (function() {
       'use strict';
 
       Polymer.IronA11yAnnouncer = Polymer({
         is: 'iron-a11y-announcer',
 
         properties: {
 
           /**
@@ skipping 1058 matching lines @@
     Manager.get().updateItem_(index, data);
   };
 
   return {Manager: Manager};
 });
 // Copyright 2015 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.
 
 window.addEventListener('load', downloads.Manager.onLoad);