[translate] Add translate ranker model loader.

components/translate/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/ui.gni")
 
 static_library("browser") {
   sources = [
     "language_model.cc",
     "language_model.h",
@@ skipping 16 matching lines @@
     "translate_language_list.cc",
     "translate_language_list.h",
     "translate_manager.cc",
     "translate_manager.h",
     "translate_prefs.cc",
     "translate_prefs.h",
     "translate_ranker.cc",
     "translate_ranker.h",
     "translate_ranker_metrics_provider.cc",
     "translate_ranker_metrics_provider.h",
+    "translate_ranker_model_loader.cc",
+    "translate_ranker_model_loader.h",
     "translate_script.cc",
     "translate_script.h",
     "translate_step.h",
     "translate_ui_delegate.cc",
     "translate_ui_delegate.h",
     "translate_url_fetcher.cc",
     "translate_url_fetcher.h",
     "translate_url_util.cc",
     "translate_url_util.h",
   ]
@@ skipping 60 matching lines @@
     "//components/prefs",
     "//components/prefs:test_support",
     "//components/sync_preferences:test_support",
     "//components/translate/core/browser/proto",
     "//components/translate/core/common",
     "//components/variations",
     "//net:test_support",
     "//testing/gtest",
   ]
 }