Created web::UserAgentType.

ios/web/BUILD.gn

 # 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.
 
 import("//ios/build/config.gni")
 import("//ios/web/js_compile.gni")
 import("//testing/test.gni")
 import("//tools/grit/grit_rule.gni")
 
 group("all_tests") {
@@ skipping 490 matching lines @@
         "{{source_file_part}}",
   ]
 }
 
 test("ios_web_unittests") {
   deps = [
     ":core",
     ":ios_web_unittests_bundle_data",
     ":run_all_unittests",
     ":test_support",
+    ":user_agent",
     ":web",
     "//base",
     "//base/test:test_support",
     "//components/url_formatter",
     "//ios/net",
     "//ios/testing:ocmock_support",
     "//ios/web/test:mojo_bindings",
     "//net:test_support",
     "//services/service_manager/public/cpp",
     "//testing/gmock",
@@ skipping 21 matching lines @@
     "net/crw_ssl_status_updater_unittest.mm",
     "net/request_group_util_unittest.mm",
     "net/request_tracker_impl_unittest.mm",
     "net/web_http_protocol_handler_delegate_unittest.mm",
     "payments/payment_request_unittest.cc",
     "public/origin_util_unittest.mm",
     "public/referrer_util_unittest.cc",
     "public/serializable_user_data_manager_unittest.mm",
     "public/test/crw_mock_web_state_delegate.h",
     "public/test/crw_mock_web_state_delegate.mm",
+    "public/user_agent_unittest.mm",
     "public/web_state/page_viewport_state_unittest.mm",
     "test/web_test_unittest.mm",
     "url_scheme_util_unittest.mm",
     "url_util_unittest.cc",
     "web_state/context_menu_params_utils_unittest.mm",
     "web_state/crw_pass_kit_downloader_unittest.mm",
     "web_state/crw_web_view_scroll_view_proxy_unittest.mm",
     "web_state/error_translation_util_unittest.mm",
     "web_state/js/common_js_unittest.mm",
     "web_state/js/core_js_unittest.mm",
@@ skipping 106 matching lines @@
     "ios_web_resources.pak",
   ]
   grit_flags = [
     "-E",
     "root_gen_dir=" + rebase_path(root_gen_dir, root_build_dir),
   ]
   deps = [
     "//mojo/public/js:bindings",
   ]
 }