Revert of Move prefix_set and parts of s_b_util into a new component safe_browsing_db.

chrome/chrome_browser.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': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 2519 matching lines @@
       'browser/safe_browsing/incident_reporting/tracked_preference_incident.cc',
       'browser/safe_browsing/incident_reporting/tracked_preference_incident.h',
       'browser/safe_browsing/incident_reporting/variations_seed_signature_analyzer.cc',
       'browser/safe_browsing/incident_reporting/variations_seed_signature_analyzer.h',
       'browser/safe_browsing/incident_reporting/variations_seed_signature_incident.cc',
       'browser/safe_browsing/incident_reporting/variations_seed_signature_incident.h',
       'browser/safe_browsing/local_database_manager.cc',
       'browser/safe_browsing/local_database_manager.h',
       'browser/safe_browsing/path_sanitizer.cc',
       'browser/safe_browsing/path_sanitizer.h',
+      'browser/safe_browsing/prefix_set.cc',
+      'browser/safe_browsing/prefix_set.h',
       'browser/safe_browsing/protocol_manager.cc',
       'browser/safe_browsing/protocol_manager.h',
       'browser/safe_browsing/protocol_parser.cc',
       'browser/safe_browsing/protocol_parser.h',
       'browser/safe_browsing/safe_browsing_database.cc',
       'browser/safe_browsing/safe_browsing_database.h',
       'browser/safe_browsing/safe_browsing_store.cc',
       'browser/safe_browsing/safe_browsing_store.h',
       'browser/safe_browsing/safe_browsing_store_file.cc',
       'browser/safe_browsing/safe_browsing_store_file.h',
@@ skipping 681 matching lines @@
             '../components/components.gyp:metrics_gpu',
             '../components/components.gyp:metrics_profiler',
             '../components/components.gyp:metrics_profiler_content',
             '../components/components.gyp:net_log',
             '../components/components.gyp:packed_ct_ev_whitelist',
             '../components/components.gyp:password_manager_content_browser',
             '../components/components.gyp:password_manager_sync_browser',
             '../components/components.gyp:plugins_common',
             '../components/components.gyp:power',
             '../components/components.gyp:proxy_config',
-            '../components/components.gyp:safe_browsing_db',
             '../components/components.gyp:safe_json',
             '../components/components.gyp:sessions_content',
             '../components/components.gyp:storage_monitor',
             '../components/components.gyp:ssl_config',
             '../components/components.gyp:syncable_prefs',
             '../components/components.gyp:translate_content_browser',
             '../components/components.gyp:upload_list',
             '../components/components.gyp:url_matcher',
             '../components/components.gyp:user_prefs_tracked',
             '../components/components.gyp:visitedlink_browser',
@@ skipping 868 matching lines @@
             '../components/components.gyp:omnibox_browser',
             '../components/components.gyp:rlz',
             '../components/components.gyp:search_engines',
             '../rlz/rlz.gyp:rlz_lib',
           ],
         },
       ],
     }],
   ],
 }