Have the dock menu "New Incognito Window" item always open a new...

chrome/browser/app_controller_mac.mm

 // Copyright (c) 2009 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.
 
 #import "chrome/browser/app_controller_mac.h"
 
 #include "app/l10n_util_mac.h"
 #include "base/command_line.h"
 #include "base/mac_util.h"
 #include "base/message_loop.h"
@@ skipping 433 matching lines @@
 - (void)commandDispatch:(id)sender {
   Profile* defaultProfile = [self defaultProfile];
 
   NSInteger tag = [sender tag];
   switch (tag) {
     case IDC_NEW_TAB:
     case IDC_NEW_WINDOW:
       Browser::OpenEmptyWindow(defaultProfile);
       break;
     case IDC_NEW_INCOGNITO_WINDOW:
-      Browser::OpenURLOffTheRecord(defaultProfile, GURL());
+      Browser::OpenEmptyWindow(defaultProfile->GetOffTheRecordProfile());
       break;
     case IDC_RESTORE_TAB:
       Browser::OpenWindowWithRestoredTabs(defaultProfile);
       break;
     case IDC_OPEN_FILE:
       Browser::OpenEmptyWindow(defaultProfile);
       BrowserList::GetLastActive()->
           ExecuteCommandWithDisposition(IDC_OPEN_FILE, CURRENT_TAB);
       break;
     case IDC_CLEAR_BROWSING_DATA:
@@ skipping 212 matching lines @@
 @end
 
 //---------------------------------------------------------------------------
 
 // Stub for cross-platform method that isn't called on Mac OS X.
 void ShowOptionsWindow(OptionsPage page,
                        OptionsGroup highlight_group,
                        Profile* profile) {
   NOTIMPLEMENTED();
 }