[Autofill] Move country combo box model from chrome to component.

components/autofill/core/browser/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.
 
 import("//build/config/chrome_build.gni")
 
 static_library("browser") {
   sources = [
     "address.cc",
     "address.h",
@@ skipping 42 matching lines @@
     "autofill_sync_constants.cc",
     "autofill_sync_constants.h",
     "autofill_type.cc",
     "autofill_type.h",
     "autofill_wallet_data_type_controller.cc",
     "autofill_wallet_data_type_controller.h",
     "card_unmask_delegate.cc",
     "card_unmask_delegate.h",
     "contact_info.cc",
     "contact_info.h",
+    "country_combobox_model.cc",
+    "country_combobox_model.h",
     "country_data.cc",
     "country_data.h",
     "country_names.cc",
     "country_names.h",
     "credit_card.cc",
     "credit_card.h",
     "credit_card_field.cc",
     "credit_card_field.h",
     "detail_input.cc",
     "detail_input.h",
@@ skipping 293 matching lines @@
     "//net:test_support",
     "//sql",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/libaddressinput:util",
     "//third_party/libphonenumber",
     "//ui/base",
     "//url",
   ]
 }