Move apps/shell to extensions/shell.

apps/shell/renderer/shell_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.
-
-var shellNatives = requireNative('shell_natives');
-var Binding = require('binding').Binding;
-var forEach = require('utils').forEach;
-var renderViewObserverNatives = requireNative('renderViewObserverNatives');
-
-var currentAppWindow = null;
-
-var shell = Binding.create('shell');
-shell.registerCustomHook(function(bindingsAPI) {
-  var apiFunctions = bindingsAPI.apiFunctions;
-
-  apiFunctions.setCustomCallback('createWindow',
-                                 function(name, request, windowParams) {
-    var view = null;
-
-    // When window creation fails, |windowParams| will be undefined.
-    if (windowParams && windowParams.viewId) {
-      view = shellNatives.GetView(windowParams.viewId);
-    }
-
-    if (!view) {
-      // No route to created window. If given a callback, trigger it with an
-      // undefined object.
-      if (request.callback) {
-        request.callback(undefined);
-        delete request.callback;
-      }
-      return;
-    }
-
-    // Initialize the app window in the newly created JS context
-    view.chrome.shell.initializeAppWindow();
-
-    var callback = request.callback;
-    if (callback) {
-      delete request.callback;
-
-      var willCallback =
-          renderViewObserverNatives.OnDocumentElementCreated(
-              windowParams.viewId,
-              function(success) {
-                if (success) {
-                  callback(view.chrome.shell.currentWindow());
-                } else {
-                  callback(undefined);
-                }
-              });
-      if (!willCallback) {
-        callback(undefined);
-      }
-    }
-  });
-
-  apiFunctions.setHandleRequest('currentWindow', function() {
-    if (!currentAppWindow) {
-      console.error(
-          'The JavaScript context calling chrome.shell.currentWindow() has' +
-          ' no associated AppWindow.');
-      return null;
-    }
-    return currentAppWindow;
-  });
-
-  // This is an internal function, but needs to be bound into a closure
-  // so the correct JS context is used for global variables such as
-  // currentAppWindow.
-  apiFunctions.setHandleRequest('initializeAppWindow', function() {
-    var AppWindow = function() {};
-    AppWindow.prototype.contentWindow = window;
-    currentAppWindow = new AppWindow;
-  });
-});
-
-exports.binding = shell.generate();