Make miscellaneous_bindings and event_bindings Required as needed. Previously

chrome/renderer/resources/extensions/sync_file_system_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 binding for the syncFileSystem API.
 
 var binding = require('binding').Binding.create('syncFileSystem');
 
-var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
+var eventBindings = require('event_bindings');
 var fileSystemNatives = requireNative('file_system_natives');
 var forEach = require('utils').forEach;
 var syncFileSystemNatives = requireNative('sync_file_system');
 
 binding.registerCustomHook(function(bindingsAPI) {
   var apiFunctions = bindingsAPI.apiFunctions;
 
   // Functions which take in an [instanceOf=FileEntry].
   function bindFileEntryFunction(i, functionName) {
     apiFunctions.setUpdateArgumentsPostValidate(
@@ skipping 59 matching lines @@
         result.error = response[i].error;
         results.push(result);
       }
     }
     if (request.callback)
       request.callback(results);
     request.callback = null;
   });
 });
 
-chromeHidden.Event.registerArgumentMassager(
+eventBindings.registerArgumentMassager(
     'syncFileSystem.onFileStatusChanged', function(args, dispatch) {
   // Make FileEntry object using all the base string fields.
   var fileEntry = fileSystemNatives.GetFileEntry(
       args[0].fileSystemType,
       args[0].fileSystemName,
       args[0].rootUrl,
       args[0].filePath,
       args[0].isDirectory);
 
   // Combine into a single dictionary.
   var fileInfo = new Object();
   fileInfo.fileEntry = fileEntry;
   fileInfo.status = args[1];
   if (fileInfo.status == "synced") {
     fileInfo.action = args[2];
     fileInfo.direction = args[3];
   }
   dispatch([fileInfo]);
 });
 
 exports.binding = binding.generate();