Revert 85732 (broke build) - Move SystemMonitor to base/.

base/base.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.
 
 {
   'target_defaults': {
     'variables': {
       'base_target': 0,
     },
     'target_conditions': [
@@ skipping 225 matching lines @@
           'synchronization/lock.h',
           'synchronization/lock_impl.h',
           'synchronization/lock_impl_posix.cc',
           'synchronization/lock_impl_win.cc',
           'synchronization/waitable_event.h',
           'synchronization/waitable_event_posix.cc',
           'synchronization/waitable_event_watcher.h',
           'synchronization/waitable_event_watcher_posix.cc',
           'synchronization/waitable_event_watcher_win.cc',
           'synchronization/waitable_event_win.cc',
-          'system_monitor/system_monitor.cc',
-          'system_monitor/system_monitor.h',
-          'system_monitor/system_monitor_mac.mm',
-          'system_monitor/system_monitor_posix.cc',
-          'system_monitor/system_monitor_win.cc',
           'sys_info.h',
           'sys_info_chromeos.cc',
           'sys_info_freebsd.cc',
           'sys_info_linux.cc',
           'sys_info_mac.cc',
           'sys_info_openbsd.cc',
           'sys_info_posix.cc',
           'sys_info_win.cc',
           'sys_string_conversions.h',
           'sys_string_conversions_linux.cc',
@@ skipping 423 matching lines @@
             'third_party/xdg_mime/xdgmimemagic.c',
             'third_party/xdg_mime/xdgmimemagic.h',
             'third_party/xdg_mime/xdgmimeparent.c',
             'third_party/xdg_mime/xdgmimeparent.h',
           ],
         },
       ],
     }],
   ],
 }