Move statistics_provider to chromeos/system

chrome/chrome_tests_unit.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.
 {
   'targets': [
     {
       # This target contains mocks and test utilities that don't belong in
       # production libraries but are used by more than one test executable.
       'target_name': 'test_support_common',
       'type': 'static_library',
@@ skipping 81 matching lines @@
         'browser/chromeos/login/mock_user_manager.cc',
         'browser/chromeos/login/mock_user_manager.h',
         'browser/chromeos/policy/device_policy_builder.cc',
         'browser/chromeos/policy/device_policy_builder.h',
         'browser/chromeos/policy/stub_enterprise_install_attributes.cc',
         'browser/chromeos/policy/stub_enterprise_install_attributes.h',
         'browser/chromeos/settings/device_settings_test_helper.cc',
         'browser/chromeos/settings/device_settings_test_helper.h',
         'browser/chromeos/settings/mock_owner_key_util.cc',
         'browser/chromeos/settings/mock_owner_key_util.h',
-        'browser/chromeos/system/mock_statistics_provider.cc',
-        'browser/chromeos/system/mock_statistics_provider.h',
         # The only thing used from browser is Browser::Type.
         'browser/download/download_test_file_activity_observer.cc',
         'browser/download/download_test_file_activity_observer.h',
         'browser/download/test_download_shelf.cc',
         'browser/download/test_download_shelf.h',
         'browser/drive/dummy_drive_service.cc',
         'browser/drive/dummy_drive_service.h',
         'browser/drive/fake_drive_service.cc',
         'browser/drive/fake_drive_service.h',
         'browser/extensions/api/messaging/native_messaging_test_util.cc',
@@ skipping 2724 matching lines @@
             'browser/ui/app_list/test/fast_show_pickler_unittest.cc',
             'browser/ui/app_list/test/fake_profile.cc',
             'browser/ui/app_list/test/fake_profile.h',
             'browser/ui/views/app_list/win/test/app_list_shower_unittest.cc',
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }