[Password Generation] Use signatures for form matching

components/autofill/core/common/BUILD.gn

 # Copyright 2014 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.
 
 static_library("common") {
   sources = [
     "autofill_constants.cc",
     "autofill_constants.h",
     "autofill_data_validation.cc",
     "autofill_data_validation.h",
@@ skipping 18 matching lines @@
     "password_form.cc",
     "password_form.h",
     "password_form_field_prediction_map.h",
     "password_form_fill_data.cc",
     "password_form_fill_data.h",
     "password_form_generation_data.h",
     "password_generation_util.cc",
     "password_generation_util.h",
     "save_password_progress_logger.cc",
     "save_password_progress_logger.h",
+    "signatures_util.cc",
+    "signatures_util.h",
   ]
 
   deps = [
     "//base",
     "//base:i18n",
+    "//third_party/re2",
     "//url",
   ]
 
   if (is_android) {
     # deps += [ 'autofill_jni_headers' ]  TODO(GYP)
   }
 
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 }
 
@@ skipping 13 matching lines @@
     ":common",
     "//base",
     "//base:i18n",
     "//base/test:test_support",
     "//components/autofill/core/browser",
     "//testing/gmock",
     "//testing/gtest",
     "//url",
   ]
 }