mac: Load the system hotkeys after launch. (reland)

chrome/chrome_browser_ui.gypi

 # Copyright 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.
 
 {
   'variables': {
     'chrome_browser_ui_non_ios_sources': [
       'browser/ui/accelerator_utils.h',
       'browser/ui/android/android_about_app_info.cc',
       'browser/ui/android/android_about_app_info.h',
@@ skipping 647 matching lines @@
       'browser/ui/cocoa/status_bubble_mac.h',
       'browser/ui/cocoa/status_bubble_mac.mm',
       'browser/ui/cocoa/status_icons/status_icon_mac.h',
       'browser/ui/cocoa/status_icons/status_icon_mac.mm',
       'browser/ui/cocoa/status_icons/status_tray_mac.h',
       'browser/ui/cocoa/status_icons/status_tray_mac.mm',
       'browser/ui/cocoa/styled_text_field.h',
       'browser/ui/cocoa/styled_text_field.mm',
       'browser/ui/cocoa/styled_text_field_cell.h',
       'browser/ui/cocoa/styled_text_field_cell.mm',
-      'browser/ui/cocoa/system_hotkey_map.h',
-      'browser/ui/cocoa/system_hotkey_map.mm',
       'browser/ui/cocoa/renderer_context_menu/render_view_context_menu_mac.h',
       'browser/ui/cocoa/renderer_context_menu/render_view_context_menu_mac.mm',
       'browser/ui/cocoa/tab_contents/chrome_web_contents_view_delegate_mac.h',
       'browser/ui/cocoa/tab_contents/chrome_web_contents_view_delegate_mac.mm',
       'browser/ui/cocoa/tab_contents/favicon_util_mac.h',
       'browser/ui/cocoa/tab_contents/favicon_util_mac.mm',
       'browser/ui/cocoa/tab_contents/overlayable_contents_controller.h',
       'browser/ui/cocoa/tab_contents/overlayable_contents_controller.mm',
       'browser/ui/cocoa/tab_contents/sad_tab_controller.h',
       'browser/ui/cocoa/tab_contents/sad_tab_controller.mm',
@@ skipping 2274 matching lines @@
         }],
         # Temporary fix to break the browser_ui target into smaller chunks so it
         # will link with SyzyASan builds.
         ['OS=="win" and syzyasan==1', {
           'msvs_shard': 4,
         }],
       ],
     },
   ],
 }