Add policy for limiting the session length

chrome/chrome_browser_chromeos.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser_chromeos',
       'type': 'static_library',
@@ skipping 540 matching lines @@
         'browser/chromeos/process_proxy/process_proxy.cc',
         'browser/chromeos/process_proxy/process_proxy.h',
         'browser/chromeos/process_proxy/process_proxy_registry.cc',
         'browser/chromeos/process_proxy/process_proxy_registry.h',
         'browser/chromeos/profile_startup.cc',
         'browser/chromeos/profile_startup.h',
         'browser/chromeos/proxy_config_service_impl.cc',
         'browser/chromeos/proxy_config_service_impl.h',
         'browser/chromeos/proxy_cros_settings_parser.cc',
         'browser/chromeos/proxy_cros_settings_parser.h',
+        'browser/chromeos/session_length_limiter.cc',
+        'browser/chromeos/session_length_limiter.h',
+        'browser/chromeos/session_length_limiter_factory.cc',
+        'browser/chromeos/session_length_limiter_factory.h',
         'browser/chromeos/settings/cros_settings.cc',
         'browser/chromeos/settings/cros_settings.h',
         'browser/chromeos/settings/cros_settings_names.cc',
         'browser/chromeos/settings/cros_settings_names.h',
         'browser/chromeos/settings/cros_settings_provider.cc',
         'browser/chromeos/settings/cros_settings_provider.h',
         'browser/chromeos/settings/device_settings_cache.cc',
         'browser/chromeos/settings/device_settings_cache.h',
         'browser/chromeos/settings/device_settings_provider.cc',
         'browser/chromeos/settings/device_settings_provider.h',
@@ skipping 189 matching lines @@
       'type': 'static_library',
       'sources': [ 'browser/chromeos/drive/drive.proto' ],
       'variables': {
         'proto_in_dir': 'browser/chromeos/drive',
         'proto_out_dir': 'chrome/browser/chromeos/drive',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }