chrome.windows.create should return new window id in Guest mode

chrome/browser/extensions/api/tabs/tabs_api.cc

 // 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.
 
 #include "chrome/browser/extensions/api/tabs/tabs_api.h"
 
 #include <algorithm>
 #include <limits>
 #include <vector>
 
@@ skipping 607 matching lines @@
 
   // Unlike other window types, Panels do not take focus by default.
   if (!saw_focus_key && create_panel)
     focused = false;
 
   if (focused)
     new_window->window()->Show();
   else
     new_window->window()->ShowInactive();
 
-  if (new_window->profile()->IsOffTheRecord() && !include_incognito()) {
-    // Don't expose incognito windows if the extension isn't allowed.
+  if (new_window->profile()->IsOffTheRecord() &&
+      !GetProfile()->IsOffTheRecord() && !include_incognito()) {
+    // Don't expose incognito windows if extension itself works in non-incognito
+    // profile and CanCrossIncognito isn't allowed.
     SetResult(Value::CreateNullValue());
   } else {
     SetResult(
         new_window->extension_window_controller()->CreateWindowValueWithTabs(
             GetExtension()));
   }
 
   return true;
 }
 
@@ skipping 1425 matching lines @@
   execute_tab_id_ = tab_id;
   details_ = details.Pass();
   return true;
 }
 
 bool TabsInsertCSSFunction::ShouldInsertCSS() const {
   return true;
 }
 
 }  // namespace extensions