This adds periodic OOM score adjustment, based on the last access time

chrome/chrome_browser.gypi

 # Copyright (c) 2010 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': '<(library)',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 2113 matching lines @@
         'browser/notifications/notification_options_menu_model.cc',
         'browser/notifications/notification_options_menu_model.h',
         'browser/notifications/notification_ui_manager.cc',
         'browser/notifications/notification_ui_manager.h',
         'browser/notifications/notifications_prefs_cache.cc',
         'browser/notifications/notifications_prefs_cache.h',
         'browser/ntp_background_util.cc',
         'browser/ntp_background_util.h',
         'browser/omnibox_search_hint.cc',
         'browser/omnibox_search_hint.h',
+        'browser/oom_priority_manager.cc',
+        'browser/oom_priority_manager.h',
         'browser/options_page_base.cc',
         'browser/options_page_base.h',
         'browser/options_util.cc',
         'browser/options_util.h',
         'browser/options_window.h',
         'browser/page_info_model.cc',
         'browser/page_info_model.h',
         'browser/parsers/metadata_parser.h',
         'browser/parsers/metadata_parser_factory.h',
         'browser/parsers/metadata_parser_filebase.cc',
@@ skipping 976 matching lines @@
           ],
         }],
         ['chromeos==0', {
           'sources/': [
             ['exclude', '^browser/chromeos'],
             ['exclude', 'browser/dom_ui/chrome_about_ui.cc'],
             ['exclude', 'browser/dom_ui/filebrowse_ui.cc'],
             ['exclude', 'browser/dom_ui/mediaplayer_ui.cc'],
             ['exclude', 'browser/dom_ui/slideshow_ui.cc'],
             ['exclude', 'browser/extensions/extension_tts_api.cc'],
+            ['exclude', 'browser/extensions/extension_tts_api.h'],
+            ['exclude', 'browser/oom_priority_manager.cc'],
+            ['exclude', 'browser/oom_priority_manager.h'],
             ['exclude', 'browser/renderer_host/offline_resource_handler.cc'],
             ['exclude', 'browser/renderer_host/offline_resource_handler.h'],
           ],
         }],
         ['chromeos==1', {
           'sources!': [
             'browser/password_manager/native_backend_gnome_x.h',
             'browser/password_manager/native_backend_gnome_x.cc',
             'browser/password_manager/native_backend_kwallet_x.h',
             'browser/password_manager/native_backend_kwallet_x.cc',
@@ skipping 818 matching lines @@
       ],
     },
   ],
 }
 
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 # tab-width:2
 # indent-tabs-mode:nil
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 # vim: set expandtab tabstop=2 shiftwidth=2: