MD Downloads: announce search results

chrome/browser/resources/md_downloads/manager.js

 // 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.
 
 cr.define('downloads', function() {
   var Manager = Polymer({
     is: 'downloads-manager',
 
     properties: {
       /** @private */
@@ skipping 71 matching lines @@
         this.removeAttribute('loading');
         this.loaded_.resolve();
       }
 
       this.spinnerActive_ = false;
     },
 
     /** @private */
     itemsChanged_: function() {
       this.hasDownloads_ = this.items_.length > 0;
+
+      if (this.inSearchMode_) {
+        Polymer.IronA11yAnnouncer.requestAvailability();
+        this.fire('iron-announce', {
+          text: this.hasDownloads_ ?
+              loadTimeData.getStringF(
+                  'searchResultsFor', this.$.toolbar.getSearchText()) :
+              this.noDownloadsText_()
+        });
+      }
     },
 
     /**
      * @return {string} The text to show when no download items are showing.
      * @private
      */
     noDownloadsText_: function() {
       return loadTimeData.getString(
           this.inSearchMode_ ? 'noSearchResults' : 'noDownloads');
     },
@@ skipping 119 matching lines @@
   Manager.removeItem = function(index) {
     Manager.get().removeItem_(index);
   };
 
   Manager.updateItem = function(index, data) {
     Manager.get().updateItem_(index, data);
   };
 
   return {Manager: Manager};
 });