Instant extended API: Make arrow up/down work.

chrome/renderer/resources/extensions/searchbox_api.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.
 
 var chrome;
 if (!chrome)
   chrome = {};
 if (!chrome.searchBox) {
   chrome.searchBox = new function() {
     // =========================================================================
@@ skipping 11 matching lines @@
     // =========================================================================
     native function GetQuery();
     native function GetVerbatim();
     native function GetSelectionStart();
     native function GetSelectionEnd();
     native function GetX();
     native function GetY();
     native function GetWidth();
     native function GetHeight();
     native function GetAutocompleteResults();
-    native function GetKeyCode();
     native function SetSuggestions();
     native function SetQuerySuggestion();
     native function SetQuerySuggestionFromAutocompleteResult();
     native function SetQuery();
     native function SetQueryFromAutocompleteResult();
     native function SetPreviewHeight();
 
     // Returns the |restrictedText| wrapped in a ShadowDOM.
     function SafeWrap(restrictedText) {
       var node = document.createElement('div');
@@ skipping 106 matching lines @@
     // =========================================================================
     this.__defineGetter__('value', GetQuery);
     this.__defineGetter__('verbatim', GetVerbatim);
     this.__defineGetter__('selectionStart', GetSelectionStart);
     this.__defineGetter__('selectionEnd', GetSelectionEnd);
     this.__defineGetter__('x', GetX);
     this.__defineGetter__('y', GetY);
     this.__defineGetter__('width', GetWidth);
     this.__defineGetter__('height', GetHeight);
     this.__defineGetter__('nativeSuggestions', GetAutocompleteResultsWrapper);
-    this.__defineGetter__('keyCode', GetKeyCode);
     this.setSuggestions = function(text) {
       SetSuggestions(text);
     };
     this.setAutocompleteText = function(text, behavior) {
       SetQuerySuggestion(text, behavior);
     };
     this.setRestrictedAutocompleteText = function(resultId, behavior) {
       SetQuerySuggestionFromAutocompleteResult(resultId, behavior);
     };
     this.setValue = function(text, type) {
       SetQuery(text, type);
     };
     this.setRestrictedValue = function(resultId, behavior) {
       SetQueryFromAutocompleteResult(resultId, behavior);
     };
     this.setNonNativeDropdownHeight = function(height) {
       SetPreviewHeight(height);
     };
     this.markDuplicateSuggestions = function(clientSuggestions) {
       return DedupeClientSuggestions(clientSuggestions);
     };
     this.onchange = null;
     this.onsubmit = null;
     this.oncancel = null;
     this.onresize = null;
     this.onautocompleteresults = null;
     this.onkeypress = null;
   };
 }