[Extensions] Add a developerPrivate.updateExtensionConfiguration function

chrome/renderer/resources/extensions/developer_private_custom_bindings.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.
 
 // Custom binding for the developerPrivate API.
 
 var binding = require('binding').Binding.create('developerPrivate');
 
 binding.registerCustomHook(function(bindingsAPI) {
   var apiFunctions = bindingsAPI.apiFunctions;
 
   // Converts the argument of |functionName| from DirectoryEntry to URL.
   function bindFileSystemFunction(functionName) {
     apiFunctions.setUpdateArgumentsPostValidate(
         functionName, function(directoryEntry, callback) {
           var fileSystemName = directoryEntry.filesystem.name;
           var relativePath = $String.slice(directoryEntry.fullPath, 1);
           var url = directoryEntry.toURL();
           return [fileSystemName, relativePath, url, callback];
     });
   }
 
   bindFileSystemFunction('loadDirectory');
 
   // developerPrivate.enable is the same as chrome.management.setEnabled.
   // TODO(devlin): Migrate callers off developerPrivate.enable.
   bindingsAPI.compiledApi.enable = chrome.management.setEnabled;
+
+  bindingsAPI.compiledApi.allowFileAccess = function(id, allow, callback) {
+    chrome.developerPrivate.updateExtensionConfiguration(
+        {extensionId: id, fileAccess: allow}, callback);
+  };
+
+  bindingsAPI.compiledApi.allowIncognito = function(id, allow, callback) {
+    chrome.developerPrivate.updateExtensionConfiguration(
+        {extensionId: id, incognitoAccess: allow}, callback);
+  };
 });
 
 exports.binding = binding.generate();