Add onfocuschange to the Extended Search API, with associated isFocused attribute.

chrome/renderer/resources/extensions/searchbox_api.js

 // Copyright 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.
 
 var chrome;
 if (!chrome)
   chrome = {};
 
 if (!chrome.embeddedSearch) {
   chrome.embeddedSearch = new function() {
@@ skipping 76 matching lines @@
       // =======================================================================
       native function GetQuery();
       native function GetVerbatim();
       native function GetSelectionStart();
       native function GetSelectionEnd();
       native function GetStartMargin();
       native function GetRightToLeft();
       native function GetAutocompleteResults();
       native function GetDisplayInstantResults();
       native function GetFontSize();
+      native function IsFocused();
       native function IsKeyCaptureEnabled();
       native function SetQuery();
       native function SetQueryFromAutocompleteResult();
       native function SetSuggestion();
       native function SetSuggestionFromAutocompleteResult();
       native function SetSuggestions();
       native function ShowOverlay();
       native function FocusOmnibox();
       native function StartCapturingKeyStrokes();
       native function StopCapturingKeyStrokes();
@@ skipping 115 matching lines @@
       // =======================================================================
       //                           Exported functions
       // =======================================================================
       this.__defineGetter__('value', GetQuery);
       this.__defineGetter__('verbatim', GetVerbatim);
       this.__defineGetter__('selectionStart', GetSelectionStart);
       this.__defineGetter__('selectionEnd', GetSelectionEnd);
       this.__defineGetter__('startMargin', GetStartMargin);
       this.__defineGetter__('rtl', GetRightToLeft);
       this.__defineGetter__('nativeSuggestions', GetAutocompleteResultsWrapper);
+      this.__defineGetter__('isFocused', IsFocused);
       this.__defineGetter__('isKeyCaptureEnabled', IsKeyCaptureEnabled);
       this.__defineGetter__('displayInstantResults', GetDisplayInstantResults);
       this.__defineGetter__('font', GetFont);
       this.__defineGetter__('fontSize', GetFontSize);
 
       // This method is restricted to chrome-search://suggestion pages by
       // checking the invoking context's origin in searchbox_extension.cc.
       this.getSuggestionData = function(restrictedId) {
         return GetSuggestionData(restrictedId);
       };
@@ skipping 46 matching lines @@
       };
       this.onchange = null;
       this.onsubmit = null;
       this.oncancel = null;
       this.onresize = null;
       this.onkeypress = null;
       this.onkeycapturechange = null;
       this.onmarginchange = null;
       this.onnativesuggestions = null;
       this.onbarshidden = null;
+      this.onfocuschange = null;
 
       // DEPRECATED. These methods are from the legacy searchbox API.
       // TODO(jered): Delete these.
       native function GetX();
       native function GetY();
       native function GetWidth();
       native function GetHeight();
       this.__defineGetter__('x', GetX);
       this.__defineGetter__('y', GetY);
       this.__defineGetter__('width', GetWidth);
@@ skipping 56 matching lines @@
 
       this.onmostvisitedchange = null;
       this.onthemechange = null;
     };
 
     // Export legacy searchbox API.
     // TODO: Remove this when Instant Extended is fully launched.
     chrome.searchBox = this.searchBox;
   };
 }