Revert of Move base/prefs to components/prefs

components/ssl_config.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/ssl_config
       'target_name': 'ssl_config',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
+        '../base/base.gyp:base_prefs',
         '../net/net.gyp:net',
         'content_settings_core_browser',
         'content_settings_core_common',
-        'prefs/prefs.gyp:prefs',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         'ssl_config/ssl_config_prefs.cc',
         'ssl_config/ssl_config_prefs.h',
         'ssl_config/ssl_config_service_manager.h',
         'ssl_config/ssl_config_service_manager_pref.cc',
         'ssl_config/ssl_config_switches.cc',
         'ssl_config/ssl_config_switches.h',
       ],
     },
   ],
 }