Create the BackgroundFetchBatchManager and initiate a download.

content/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/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
 import("//third_party/WebKit/public/public_features.gni")
@@ skipping 298 matching lines @@
     "appcache/appcache_update_job.cc",
     "appcache/appcache_update_job.h",
     "appcache/appcache_url_request_job.cc",
     "appcache/appcache_url_request_job.h",
     "appcache/appcache_working_set.cc",
     "appcache/appcache_working_set.h",
     "appcache/chrome_appcache_service.cc",
     "appcache/chrome_appcache_service.h",
     "audio_manager_thread.cc",
     "audio_manager_thread.h",
+    "background_fetch/background_fetch_batch_manager.cc",
+    "background_fetch/background_fetch_batch_manager.h",
     "background_fetch/background_fetch_context.cc",
     "background_fetch/background_fetch_context.h",
     "background_fetch/background_fetch_data_manager.cc",
     "background_fetch/background_fetch_data_manager.h",
+    "background_fetch/batch_request.cc",
+    "background_fetch/batch_request.h",

[Peter Beverloo, 2017/02/23 12:14:55]

These files aren't included in this CL?

[harkness, 2017/02/23 17:08:40]

Added them. Unfortunately, because they weren't added before, when I was working
on the follow-up, I was editing the original files. So now the follow-up is just
going to be a new patch set on this CL. Sorry about that.

     "background_fetch/fetch_request.cc",
     "background_fetch/fetch_request.h",
     "background_sync/background_sync_context.cc",
     "background_sync/background_sync_context.h",
     "background_sync/background_sync_manager.cc",
     "background_sync/background_sync_manager.h",
     "background_sync/background_sync_metrics.cc",
     "background_sync/background_sync_metrics.h",
     "background_sync/background_sync_network_observer.cc",
     "background_sync/background_sync_network_observer.h",
@@ skipping 1684 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }