Connect BackgroundFetch to the OfflineItemCollection

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 72 matching lines @@
     "autocomplete/in_memory_url_index_factory.cc",
     "autocomplete/in_memory_url_index_factory.h",
     "autocomplete/shortcuts_backend_factory.cc",
     "autocomplete/shortcuts_backend_factory.h",
     "autofill/personal_data_manager_factory.cc",
     "autofill/personal_data_manager_factory.h",
     "autofill/risk_util.cc",
     "autofill/risk_util.h",
     "autofill/validation_rules_storage_factory.cc",
     "autofill/validation_rules_storage_factory.h",
+    "background_fetch/background_fetch_client_factory.cc",
+    "background_fetch/background_fetch_client_factory.h",
+    "background_fetch/background_fetch_client_impl.cc",
+    "background_fetch/background_fetch_client_impl.h",
     "background_sync/background_sync_controller_factory.cc",
     "background_sync/background_sync_controller_factory.h",
     "background_sync/background_sync_controller_impl.cc",
     "background_sync/background_sync_controller_impl.h",
     "background_sync/background_sync_permission_context.cc",
     "background_sync/background_sync_permission_context.h",
     "bad_message.cc",
     "bad_message.h",
     "banners/app_banner_manager.cc",
     "banners/app_banner_manager.h",
@@ skipping 4588 matching lines @@
       "media/pepper_cdm_test_constants.cc",
       "media/pepper_cdm_test_constants.h",
     ]
   }
 }
 
 service_manifest("preferences_forwarder_manifest") {
   name = "preferences_forwarder"
   source = "prefs/forwarder_manifest.json"
 }