Add field to monitor last visited time for each search engine

components/webdata/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.
 
 component("common") {
   output_name = "webdata_common"
 
   sources = [
     "web_data_request_manager.cc",
     "web_data_request_manager.h",
@@ skipping 36 matching lines @@
     "//components/test/data/web_database/version_58.sql",
     "//components/test/data/web_database/version_59.sql",
     "//components/test/data/web_database/version_60.sql",
     "//components/test/data/web_database/version_61.sql",
     "//components/test/data/web_database/version_62.sql",
     "//components/test/data/web_database/version_63.sql",
     "//components/test/data/web_database/version_64.sql",
     "//components/test/data/web_database/version_65.sql",
     "//components/test/data/web_database/version_66.sql",
     "//components/test/data/web_database/version_67.sql",
+    "//components/test/data/web_database/version_68.sql",
   ]
   outputs = [
     "{{bundle_resources_dir}}/" +
         "{{source_root_relative_dir}}/{{source_file_part}}",
   ]
 }
 
 source_set("unit_tests") {
   testonly = true
   sources = [
     "web_database_migration_unittest.cc",
   ]
 
   deps = [
     ":common",
     ":unit_tests_bundle_data",
     "//base",
     "//components/autofill/core/browser",
     "//components/autofill/core/common",
     "//components/password_manager/core/browser",
     "//components/search_engines",
     "//components/signin/core/browser",
     "//sql",
     "//testing/gtest",
   ]
 }