Add API in developerPrivate to allow/ disallow incognito mode.

chrome/common/extensions/api/developer_private.idl

 // 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.
 
 // developerPrivate API.
 // This is a private API exposing developing and debugging functionalities for
 // apps and extensions.
 
 namespace developerPrivate {
 
@@ skipping 80 matching lines @@
     // Unpacked items's path.
     DOMString item_path;
 
     // Permanent key path.
     DOMString pem_path;
 
     long override_flags;
     PackStatus status;
   };
 
+  callback VoidCallback = void ();
   callback BooleanCallback = void (boolean result);
   callback ItemsInfoCallback = void (ItemInfo[] result);
   callback GetStringsCallback = void (object result);
   callback PathCallback = void (DOMString path);
   callback PackCallback = void (PackDirectoryResponse response);
 
   interface Functions {
     // Runs auto update for extensions and apps immediately.
     // |callback| : Called with the boolean result, true if autoUpdate is
     // successful.
@@ skipping 17 matching lines @@
                                 BooleanCallback callback);
 
     // Reloads a given item with |itemId|.
     static void reload(DOMString itemId, BooleanCallback callback);
 
     // Enable / Disable a given item with id |itemId|.
     static void enable(DOMString itemId,
                        boolean enable,
                        BooleanCallback callback);
 
+    // Allow / Disallow item with |item_id| in incognito mode.
+    static void allowIncognito(DOMString item_id,
+                               boolean allow,
+                               VoidCallback callback);
+
     // Load a user selected unpacked item
     static void loadUnpacked(BooleanCallback callback);
 
     // Open Dialog to browse to an entry.
     // |select_type| : Select a file or a folder.
     // |file_type| : Required file type. For Example pem type is for private
     // key and load type is for an unpacked item.
     // |callback| : called with selected item's path.
     static void choosePath(SelectType select_type,
                            FileType file_type,
                            PathCallback callback);
 
     // Pack an item with given |path| and |private_key_path|
     // |callback| : called with the success result string.
     static void packDirectory(DOMString path,
                               DOMString private_key_path,
                               long flags,
                               PackCallback callback);
 
     // Gets localized translated strings for apps_debugger. It returns the
     // strings as a dictionary mapping from string identifier to the
     // translated string to use in the apps_debugger app UI.
     static void getStrings(GetStringsCallback callback);
   };
 
 };