[Offline pages] Create offliner that uses background loader

chrome/browser/BUILD.gn

Index: chrome/browser/BUILD.gn
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index 828c5519c86c82cc0a15daaae40dd510a4a7b217..0e87af2932e4a87a7987a188db51f93f24441f1a 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -1415,6 +1415,7 @@ split_static_library("browser") {
     "//components/network_time",
     "//components/ntp_snippets",
     "//components/ntp_tiles",
+    "//components/offline_pages/content/background_loader",
     "//components/offline_pages/core",
     "//components/offline_pages/core/background:background_offliner",
     "//components/offline_pages/core/downloads:offline_pages_ui_adapter",
@@ -3106,6 +3107,8 @@ split_static_library("browser") {
       "android/ntp/ntp_snippets_bridge.h",
       "android/ntp/ntp_snippets_launcher.cc",
       "android/ntp/ntp_snippets_launcher.h",
+      "android/offline_pages/background_loader_offliner.cc",
+      "android/offline_pages/background_loader_offliner.h",
       "android/offline_pages/background_scheduler_bridge.cc",
       "android/offline_pages/background_scheduler_bridge.h",
       "android/offline_pages/downloads/offline_page_download_bridge.cc",