[downloads] Move platform specific code out of DownloadTargetDeterminer.

chrome/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")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//chrome/common/features.gni")
@@ skipping 311 matching lines @@
     "dom_distiller/tab_utils.cc",
     "dom_distiller/tab_utils.h",
     "domain_reliability/service_factory.cc",
     "domain_reliability/service_factory.h",
     "doodle/doodle_service_factory.cc",
     "doodle/doodle_service_factory.h",
     "download/all_download_item_notifier.cc",
     "download/all_download_item_notifier.h",
     "download/chrome_download_manager_delegate.cc",
     "download/chrome_download_manager_delegate.h",
+    "download/download_confirmation_reason.h",
+    "download/download_confirmation_result.h",
     "download/download_crx_util_android.cc",
     "download/download_file_picker.cc",
     "download/download_file_picker.h",
     "download/download_history.cc",
     "download/download_history.h",
     "download/download_item_model.cc",
     "download/download_item_model.h",
     "download/download_path_reservation_tracker.cc",
     "download/download_path_reservation_tracker.h",
     "download/download_prefs.cc",
@@ skipping 13 matching lines @@
     "download/download_started_animation.h",
     "download/download_stats.cc",
     "download/download_stats.h",
     "download/download_status_updater.cc",
     "download/download_status_updater.h",
     "download/download_status_updater_mac.mm",
     "download/download_status_updater_win.cc",
     "download/download_target_determiner.cc",
     "download/download_target_determiner.h",
     "download/download_target_determiner_delegate.h",
+    "download/download_target_info.cc",
     "download/download_target_info.h",
     "download/download_ui_controller.cc",
     "download/download_ui_controller.h",
     "download/drag_download_item.h",
     "download/save_package_file_picker.cc",
     "download/save_package_file_picker.h",
     "engagement/important_sites_util.cc",
     "engagement/important_sites_util.h",
     "engagement/site_engagement_helper.cc",
     "engagement/site_engagement_helper.h",
@@ skipping 4233 matching lines @@
       "media/pepper_cdm_test_constants.cc",
       "media/pepper_cdm_test_constants.h",
     ]
   }
 }
 
 service_manifest("preferences_manifest") {
   name = "preferences"
   source = "prefs/preferences_manifest.json"
 }