Bind ^Q to quit, as is standard with Linux GUI apps.

chrome/browser/gtk/standard_menus.cc

 // Copyright (c) 2006-2008 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/gtk/standard_menus.h"
 
 #include <gtk/gtk.h>
 #include <gdk/gdkkeysyms.h>
 
 #include "app/l10n_util.h"
@@ skipping 78 matching lines @@
     GDK_j, GDK_CONTROL_MASK },
   { MENU_SEPARATOR },
   // TODO(erg): P13N stuff goes here as soon as they get IDS strings.
   { MENU_NORMAL, IDC_CLEAR_BROWSING_DATA, IDS_CLEAR_BROWSING_DATA },
   { MENU_NORMAL, IDC_IMPORT_SETTINGS, IDS_IMPORT_SETTINGS },
   { MENU_SEPARATOR },
   { MENU_NORMAL, IDC_OPTIONS, IDS_OPTIONS, IDS_PRODUCT_NAME },
   { MENU_NORMAL, IDC_ABOUT, IDS_ABOUT, IDS_PRODUCT_NAME },
   { MENU_NORMAL, IDC_HELP_PAGE, IDS_HELP_PAGE, 0, NULL, GDK_F1 },
   { MENU_SEPARATOR },
-  { MENU_NORMAL, IDC_EXIT, IDS_EXIT },
+  { MENU_NORMAL, IDC_EXIT, IDS_EXIT, 0, NULL, GDK_q, GDK_CONTROL_MASK },
   { MENU_END }
 };
 }  // namespace
 
 const MenuCreateMaterial* GetStandardPageMenu() {
   return standard_page_menu_materials;
 }
 
 const MenuCreateMaterial* GetStandardAppMenu() {
   return standard_app_menu_materials;
 }