Turn on session restore by default for mac on Lion

chrome/chrome_browser.gypi

 # Copyright (c) 2011 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'dependencies': [
@@ skipping 2657 matching lines @@
         'browser/ui/cocoa/translate/translate_message_infobar_controller.mm',
         'browser/ui/cocoa/ui_localizer.h',
         'browser/ui/cocoa/ui_localizer.mm',
         'browser/ui/cocoa/url_drop_target.h',
         'browser/ui/cocoa/url_drop_target.mm',
         'browser/ui/cocoa/vertical_gradient_view.h',
         'browser/ui/cocoa/vertical_gradient_view.mm',
         'browser/ui/cocoa/view_id_util.h',
         'browser/ui/cocoa/view_id_util.mm',
         'browser/ui/cocoa/view_resizer.h',
+        'browser/ui/cocoa/window_restore_utils.h',
+        'browser/ui/cocoa/window_restore_utils.mm',
         'browser/ui/cocoa/window_size_autosaver.h',
         'browser/ui/cocoa/window_size_autosaver.mm',
         'browser/ui/cocoa/wrench_menu/menu_tracked_button.h',
         'browser/ui/cocoa/wrench_menu/menu_tracked_button.mm',
         'browser/ui/cocoa/wrench_menu/menu_tracked_root_view.h',
         'browser/ui/cocoa/wrench_menu/menu_tracked_root_view.mm',
         'browser/ui/cocoa/wrench_menu/wrench_menu_button_cell.h',
         'browser/ui/cocoa/wrench_menu/wrench_menu_button_cell.mm',
         'browser/ui/cocoa/wrench_menu/wrench_menu_controller.h',
         'browser/ui/cocoa/wrench_menu/wrench_menu_controller.mm',
@@ skipping 2187 matching lines @@
       ],
       'export_dependent_settings': [
         'in_memory_url_index_cache_proto',
       ],
       # This target exports a hard dependency because it includes generated
       # header files.
       'hard_dependency': 1,
     },
   ],
 }