Make Task Manager sort more meaningful

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.
 {
   'variables': {
     'chrome_unit_tests_sources': [
       # histograms.xml is analyzed by AboutFlagsHistogramTest, so this
       # dependency is needed to make commit bots run unit_tests on
       # histograms.xml changes.
       '../tools/metrics/histograms/histograms.xml',
@@ skipping 711 matching lines @@
     ],
     'chrome_test_support_unit_ash_sources': [
       'browser/ui/ash/launcher/test/launcher_application_menu_item_model_test_api.cc',
       'browser/ui/ash/launcher/test/launcher_application_menu_item_model_test_api.h',
       'browser/ui/ash/launcher/test/test_chrome_launcher_app_menu_item.cc',
       'browser/ui/ash/launcher/test/test_chrome_launcher_app_menu_item.h',
     ],
     'chrome_unit_tests_task_manager_sources': [
       'browser/task_management/providers/browser_process_task_unittest.cc',
       'browser/task_management/providers/child_process_task_unittest.cc',
+      'browser/task_management/sampling/task_manager_impl_unittest.cc',
       'browser/task_management/task_manager_observer_unittest.cc',
       'browser/task_management/test_task_manager.cc',
       'browser/task_management/test_task_manager.h',
     ],
     'chrome_unit_tests_mdns_sources': [
       'browser/local_discovery/local_domain_resolver_unittest.cc',
       'browser/local_discovery/service_discovery_client_unittest.cc',
       'browser/printing/cloud_print/privet_device_lister_unittest.cc',
       'browser/printing/cloud_print/privet_local_printer_lister_unittest.cc',
     ],
@@ skipping 2260 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }