[Extensions Bindings] Don't load sendRequest module with native bindings

extensions/renderer/resources/set_icon.js

 // Copyright 2014 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 SetIconCommon = requireNative('setIcon').SetIconCommon;
-var sendRequest = require('sendRequest').sendRequest;
 
 function loadImagePath(path, callback) {
   var img = new Image();
   img.onerror = function() {
     console.error('Could not load action icon \'' + path + '\'.');
   };
   img.onload = function() {
     var canvas = document.createElement('canvas');
     canvas.width = img.width;
     canvas.height = img.height;
@@ skipping 86 matching lines @@
         delete details.path;
         callback(SetIconCommon(details));
       });
     }
     return;
   }
   throw new Error('Either the path or imageData property must be specified.');
 }
 
 exports.$set('setIcon', setIcon);