MD Settings: announce search results

chrome/browser/resources/settings/settings_main/settings_main.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.
 
 /**
  * @typedef {{about: boolean, settings: boolean}}
  */
 var MainPageVisibility;
 
 /**
@@ skipping 249 matching lines @@
             // Nothing to do here. A previous search request was canceled
             // because a new search request was issued with a different query
             // before the previous completed.
             return;
           }
 
           this.toolbarSpinnerActive = false;
           this.inSearchMode_ = !result.wasClearSearch;
           this.showNoResultsFound_ =
               this.inSearchMode_ && result.didFindMatches;
+
+          if (this.inSearchMode_) {
+            Polymer.IronA11yAnnouncer.requestAvailability();
+            this.fire('iron-announce', {
+              text: this.showNoResultsFound_ ?
+                  loadTimeData.getString('searchNoResults') :
+                  loadTimeData.getStringF('searchResults', query)
+            });
+          }
         }.bind(this));
       }.bind(this), 0);
     }.bind(this));
   },
 });