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

components/safe_browsing_db.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': [
     {
-      'target_name': 'browsing_data',
+      # GN version: //components/safe_browsing_db
+      'target_name': 'safe_browsing_db',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
-        '../content/content.gyp:content_browser',
-        '../net/net.gyp:net',
+        '../crypto/crypto.gyp:crypto',
+      ],
+      'sources': [
+        # Note: sources list duplicated in GN build.
+        'safe_browsing_db/prefix_set.h',
+        'safe_browsing_db/prefix_set.cc',
+        'safe_browsing_db/safe_browsing_db_util.h',
+        'safe_browsing_db/safe_browsing_db_util.cc',
       ],
       'include_dirs': [
         '..',
       ],
-      'sources': [
-        # Note: sources list duplicated in GN build.
-        'browsing_data/storage_partition_http_cache_data_remover.cc',
-        'browsing_data/storage_partition_http_cache_data_remover.h',
-      ],
     },
   ],
 }