Lazy load chrome.* APIs

chrome/renderer/resources/extensions/app_runtime_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 chrome.app.runtime API.
+// Custom binding for the chrome.app.runtime API.
+
+var binding = require('binding').Binding.create('app.runtime');
 
 var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
+var chrome = requireNative('chrome').GetChrome();
 var fileSystemHelpers = requireNative('file_system_natives');
 var GetIsolatedFileSystem = fileSystemHelpers.GetIsolatedFileSystem;
 var appNatives = requireNative('app_runtime');
 var DeserializeString = appNatives.DeserializeString;
 var SerializeToString = appNatives.SerializeToString;
 var CreateBlob = appNatives.CreateBlob;
 
 chromeHidden.Event.registerArgumentMassager('app.runtime.onLaunched',
     function(args, dispatch) {
   var launchData = args[0];
@@ skipping 24 matching lines @@
       }, function(fileError) {
         itemLoaded(fileError);
       });
     });
   } else if (launchData) {
     dispatch([launchData]);
   } else {
     dispatch([]);
   }
 });
+
+exports.binding = binding.generate();