Move apps/shell to extensions/shell.

extensions/shell/common/api/shell.idl

 // 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.
 
 // Use the <code>chrome.shell</code> API to create windows. The
 // <code>createWindow</code> API is a subset of
 // <code>chrome.app.window.create</code>.
 namespace shell {
 
   // Called in the creating window (parent) before the load event is called in
@@ skipping 16 matching lines @@
     static void createWindow(DOMString url,
                              optional object optionsPlaceholder,
                              optional CreateWindowCallback callback);
 
     // Returns an $(ref:AppWindow) object for the current script context
     // (i.e. JavaScript 'window' object).
     [nocompile] static AppWindow currentWindow();
     [nocompile, nodoc] static void initializeAppWindow();
   };
 };