Revert of Move base/prefs to components/prefs

components/flags_ui.gypi

 # Copyright 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.
 
 {
   'targets': [
     {
       # GN version: //components/flags_ui
       'target_name': 'flags_ui',
       'type': 'static_library',
       'include_dirs': [
         '..',
       ],
       'dependencies': [
         '../base/base.gyp:base',
+        '../base/base.gyp:base_prefs',
         '../components/components_strings.gyp:components_strings',
-        '../components/prefs/prefs.gyp:prefs',
         '../ui/base/ui_base.gyp:ui_base',
         'flags_ui_switches',
         'pref_registry',
       ],
       'sources': [
         # Note: sources list duplicated in GN build.
         'flags_ui/feature_entry.cc',
         'flags_ui/feature_entry.h',
         'flags_ui/feature_entry_macros.h',
         'flags_ui/flags_state.cc',
@@ skipping 42 matching lines @@
           'configurations': {
             'Common_Base': {
               'msvs_target_platform': 'x64',
             },
           },
         },
       ],
     }],
   ],
 }