Move test runner to a component

build/gn_migration.gypi

 # Copyright (c) 2015 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.
 
 # This file defines five targets that we are using to track the progress of the
 # GYP->GN migration:
 #
 # 'both_gn_and_gyp' lists what GN is currently capable of building and should
 # match the 'both_gn_and_gyp' target in //BUILD.gn.
 #
@@ skipping 616 matching lines @@
             '../chrome/chrome.gyp:setup_unittests',
             '../chrome/installer/mini_installer.gyp:mini_installer',
             '../chrome/tools/crash_service/caps/caps.gyp:caps',
             '../cloud_print/gcp20/prototype/gcp20_device.gyp:gcp20_device',
             '../cloud_print/gcp20/prototype/gcp20_device.gyp:gcp20_device_unittests',
             '../cloud_print/service/service.gyp:cloud_print_service',
             '../cloud_print/service/service.gyp:cloud_print_service_config',
             '../cloud_print/service/service.gyp:cloud_print_service_setup',
             '../cloud_print/virtual_driver/win/install/virtual_driver_install.gyp:virtual_driver_setup',
             '../cloud_print/virtual_driver/win/virtual_driver.gyp:gcp_portmon',
+            '../components/test_runner/test_runner.gyp:layout_test_helper',
             '../content/content_shell_and_tests.gyp:content_shell_crash_service',
-            '../content/content_shell_and_tests.gyp:layout_test_helper',
             '../gpu/gpu.gyp:angle_end2end_tests',
             '../gpu/gpu.gyp:angle_perftests',
             '../net/net.gyp:net_docs',
             '../ppapi/ppapi_internal.gyp:ppapi_perftests',
             '../remoting/app_remoting_test.gyp:ar_sample_test_driver',
             '../remoting/remoting.gyp:remoting_breakpad_tester',
             '../remoting/remoting.gyp:remoting_console',
             '../remoting/remoting.gyp:remoting_desktop',
             '../rlz/rlz.gyp:rlz',
             '../tools/win/static_initializers/static_initializers.gyp:static_initializers',
@@ skipping 24 matching lines @@
           'dependencies': [
             # TODO(GYP): All of these targets need to be ported over.
             '../components/components.gyp:policy_win64',
           ]
         }],
       ],
     },
   ]
 }