Lazy load chrome.* APIs

chrome/renderer/resources/extensions/omnibox_custom_bindings.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.
 
-// Custom bindings for the omnibox API. Only injected into the v8 contexts
+// Custom binding for the omnibox API. Only injected into the v8 contexts
 // for extensions which have permission for the omnibox API.
 
+var binding = require('binding').Binding.create('omnibox');
+
 var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
 var sendRequest = require('sendRequest').sendRequest;
 
 // Remove invalid characters from |text| so that it is suitable to use
 // for |AutocompleteMatch::contents|.
 function sanitizeString(text, shouldTrim) {
   // NOTE: This logic mirrors |AutocompleteMatch::SanitizeString()|.
   // 0x2028 = line separator; 0x2029 = paragraph separator.
   var kRemoveChars = /(\r|\n|\t|\u2028|\u2029)/gm;
   if (shouldTrim)
@@ skipping 54 matching lines @@
       // Descend into all other nodes, even if they are unrecognized, for
       // forward compat.
       walk(child);
     }
   };
   walk(root);
 
   return result;
 }
 
-chromeHidden.registerCustomHook('omnibox', function(bindingsAPI) {
+binding.registerCustomHook(function(bindingsAPI) {
   var apiFunctions = bindingsAPI.apiFunctions;
 
   apiFunctions.setHandleRequest('setDefaultSuggestion', function(details) {
     var parseResult = parseOmniboxDescription(details.description);
     sendRequest(this.name, [parseResult], this.definition.parameters);
   });
 
   apiFunctions.setUpdateArgumentsPostValidate(
       'sendSuggestions', function(requestId, userSuggestions) {
     var suggestions = [];
     for (var i = 0; i < userSuggestions.length; i++) {
       var parseResult = parseOmniboxDescription(
           userSuggestions[i].description);
       parseResult.content = userSuggestions[i].content;
       suggestions.push(parseResult);
     }
     return [requestId, suggestions];
   });
 });
 
 chromeHidden.Event.registerArgumentMassager('omnibox.onInputChanged',
     function(args, dispatch) {
   var text = args[0];
   var requestId = args[1];
   var suggestCallback = function(suggestions) {
     chrome.omnibox.sendSuggestions(requestId, suggestions);
   };
   dispatch([text, suggestCallback]);
 });
+
+exports.binding = binding.generate();