Detect seek penalties on Linux/ChromeOS.

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 816 matching lines @@
     # there's no value in building any of chrome/ for iOS.
     'chrome_browser_ios_sources': [
       'browser/browser_process.cc',
       'browser/browser_process.h',
       'browser/browser_process_platform_part_base.cc',
       'browser/browser_process_platform_part_base.h',
       'browser/password_manager/password_manager_util_ios.mm',
     ],
     # Desktop Linux and ChromeOS.
     'chrome_browser_linux_sources': [
+      'browser/metrics/drive_metrics_provider_linux.cc',
       'browser/renderer_context_menu/spellchecker_submenu_observer_hunspell.cc',
     ],
     # Desktop linux, doesn't count ChromeOS.
     'chrome_browser_linux_desktop_sources': [
       'browser/first_run/upgrade_util.cc',
       'browser/first_run/upgrade_util_linux.cc',
       'browser/first_run/upgrade_util_linux.h',
       'browser/fullscreen_aurax11.cc',
       'browser/icon_loader_auralinux.cc',
       'browser/password_manager/native_backend_kwallet_x.cc',
@@ skipping 2970 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' ]
         },
       ],
     },],
   ],
 }