Add an OriginFilterBuilder class for [white|black]listing origins.

url/BUILD.gn

 # Copyright (c) 2013 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.
 
 import("//testing/test.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
 # Shared sources between url and url_lib_use_icu_alternatives_on_android.
 url_shared_sources = [
   "gurl.cc",
   "gurl.h",
   "origin.cc",
   "origin.h",
+  "origin_filter.cc",
+  "origin_filter.h",
   "scheme_host_port.cc",
   "scheme_host_port.h",
   "third_party/mozilla/url_parse.cc",
   "third_party/mozilla/url_parse.h",
   "url_canon.h",
   "url_canon_etc.cc",
   "url_canon_filesystemurl.cc",
   "url_canon_fileurl.cc",
   "url_canon_host.cc",
   "url_canon_internal.cc",
@@ skipping 93 matching lines @@
   group("url_unittests_run") {
     testonly = true
     deps = [
       ":url_unittests",
     ]
   }
 
   test("url_unittests") {
     sources = [
       "gurl_unittest.cc",
+      "origin_filter_unittest.cc",
       "origin_unittest.cc",
       "scheme_host_port_unittest.cc",
       "url_canon_icu_unittest.cc",
       "url_canon_unittest.cc",
       "url_parse_unittest.cc",
       "url_test_utils.h",
       "url_util_unittest.cc",
     ]
 
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 
     deps = [
       ":url",
       "//base",
       "//base/test:run_all_unittests",
       "//testing/gtest",
       "//third_party/icu:icuuc",
     ]
   }
 }