Linux Aura: Use system title bar is now set by preference, not flag.

chrome/app/chrome_command_ids.h

 // 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.
 
 #ifndef CHROME_APP_CHROME_COMMAND_IDS_H_
 #define CHROME_APP_CHROME_COMMAND_IDS_H_
 
 // This file lists all the command IDs understood by e.g. the browser.
 // It is used by Windows RC files, Mac NIB files, and other platforms too.
 
@@ skipping 57 matching lines @@
 #define IDC_METRO_SNAP_DISABLE          34041
 #define IDC_WIN8_DESKTOP_RESTART        34042
 #define IDC_WIN8_METRO_RESTART          34043
 #define IDC_TOGGLE_ASH_DESKTOP          34044
 #define IDC_WINDOW_MENU                 34045
 #define IDC_MINIMIZE_WINDOW             34046
 #define IDC_MAXIMIZE_WINDOW             34047
 #define IDC_ALL_WINDOWS_FRONT           34048
 #define IDC_VISIT_DESKTOP_OF_LRU_USER_2 34049
 #define IDC_VISIT_DESKTOP_OF_LRU_USER_3 34050
+#define IDC_USE_SYSTEM_TITLE_BAR        34051
 
 // Page-related commands
 #define IDC_BOOKMARK_PAGE               35000
 #define IDC_BOOKMARK_ALL_TABS           35001
 #define IDC_VIEW_SOURCE                 35002
 #define IDC_PRINT                       35003
 #define IDC_SAVE_PAGE                   35004
 #define IDC_ENCODING_MENU               35005
 #define IDC_EMAIL_PAGE_LOCATION         35006
 #define IDC_ADVANCED_PRINT              35007
@@ skipping 268 matching lines @@
 
 // Protocol handler menu entries
 #define IDC_CONTENT_CONTEXT_PROTOCOL_HANDLER_FIRST     52000
 #define IDC_CONTENT_CONTEXT_PROTOCOL_HANDLER_LAST      52199
 #define IDC_CONTENT_CONTEXT_PROTOCOL_HANDLER_SETTINGS  52200
 
 // NOTE: The last valid command value is 57343 (0xDFFF)
 // See http://msdn.microsoft.com/en-us/library/t2zechd4(VS.71).aspx
 
 #endif  // CHROME_APP_CHROME_COMMAND_IDS_H_