Componentize internal class FlagsState in flags_ui component.

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 2795 matching lines @@
     {
       # GN: //chrome/test:chrome_app_unittests
       'target_name': 'chrome_app_unittests',
       'type': 'executable',
       'dependencies': [
         # unit tests should only depend on
         # 1) everything that the chrome binaries depend on:
         '<@(chromium_browser_dependencies)',
         '<@(chromium_child_dependencies)',
         '../components/components.gyp:crash_core_common',
+        '../components/components.gyp:flags_ui_switches',
         '../content/content.gyp:content_app_both',
         # 2) test-specific support libraries:
         '../base/base.gyp:run_all_unittests',
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
         'test_support_common',
       ],
       'include_dirs': [
         '..',
       ],
@@ skipping 163 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }