Add a new function for getting a deterministic machine ID

chrome/chrome_browser.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': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 1066 matching lines @@
       'browser/hang_monitor/hang_crash_dump_win.h',
       'browser/hang_monitor/hung_plugin_action.cc',
       'browser/hang_monitor/hung_plugin_action.h',
       'browser/hang_monitor/hung_window_detector.cc',
       'browser/hang_monitor/hung_window_detector.h',
       'browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.cc',
       'browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.h',
       'browser/renderer_context_menu/spellchecker_submenu_observer_hunspell.cc',
     ],
     'chrome_browser_non_win_sources': [
+      'browser/prefs/tracked/device_id_stub.cc',
       'browser/profiles/profile_shortcut_manager_stub.cc',
     ],
     # Sources (generally "desktop OS importers") used only on Mac & Windows.
     'chrome_browser_win_mac_sources': [
       'browser/media_galleries/fileapi/iapps_data_provider.cc',
       'browser/media_galleries/fileapi/iapps_data_provider.h',
       'browser/media_galleries/fileapi/file_path_watcher_util.cc',
       'browser/media_galleries/fileapi/file_path_watcher_util.h',
       'browser/media_galleries/fileapi/itunes_data_provider.cc',
       'browser/media_galleries/fileapi/itunes_data_provider.h',
@@ skipping 1073 matching lines @@
       'browser/profiles/gaia_info_update_service.cc',
       'browser/profiles/gaia_info_update_service.h',
       'browser/profiles/gaia_info_update_service_factory.cc',
       'browser/profiles/gaia_info_update_service_factory.h',
       'browser/profiles/incognito_helpers.cc',
       'browser/profiles/incognito_helpers.h',
       'browser/profiles/off_the_record_profile_impl.cc',
       'browser/profiles/off_the_record_profile_impl.h',
       'browser/profiles/off_the_record_profile_io_data.cc',
       'browser/profiles/off_the_record_profile_io_data.h',
+      'browser/prefs/tracked/device_id_win.cc',
+      'browser/prefs/tracked/device_id.h',

[gab, 2015/01/20 15:34:13]

Put these two alongside the other prefs/tracked in the non-OS specific section.

(the _win.cc will automatically get selected out on non-Win (by
filename_rules.gypi) -- these OS-specific sections are only for things where an
ifdef is truly intended whereas we want our interface to be cross-platform)

[alito, 2015/01/26 16:32:48]

Done.

       'browser/profiles/profile.cc',
       'browser/profiles/profile.h',
       'browser/profiles/profile_android.cc',
       'browser/profiles/profile_android.h',
       'browser/profiles/profile_avatar_downloader.cc',
       'browser/profiles/profile_avatar_downloader.h',
       'browser/profiles/profile_avatar_icon_util.cc',
       'browser/profiles/profile_avatar_icon_util.h',
       'browser/profiles/profile_destroyer.cc',
       'browser/profiles/profile_destroyer.h',
@@ skipping 1507 matching lines @@
           'variables': {
             'proto_in_dir': 'browser/sync_file_system/drive_backend',
             'proto_out_dir': 'chrome/browser/sync_file_system/drive_backend',
           },
           'includes': [ '../build/protoc.gypi' ]
         },
       ],
     },],
   ],
 }