Fixes to enable indication of bytes downloaded for Offline Pages in Download Home.

components/offline_pages/core/downloads/download_ui_adapter.h

Index: components/offline_pages/core/downloads/download_ui_adapter.h
diff --git a/components/offline_pages/core/downloads/download_ui_adapter.h b/components/offline_pages/core/downloads/download_ui_adapter.h
index f0ecbd6a967d0845a09aaa70ef35e778eb21d875..c23928578b182b17190144ff903cd7bfc0c10664 100644
--- a/components/offline_pages/core/downloads/download_ui_adapter.h
+++ b/components/offline_pages/core/downloads/download_ui_adapter.h
@@ -78,6 +78,12 @@ class DownloadUIAdapter : public OfflinePageModel::Observer,
                     std::unique_ptr<Delegate> delegate);
   ~DownloadUIAdapter() override;
 
+  // TODO(dimich): Refactor all pieces of OfflinePages into a single service

[fgorski, 2017/02/27 16:22:56]

I think we have a bug for it. Todo is not necessary here.

Since this is public, you might want to add documentation instead.

[Dmitry Titov, 2017/02/27 20:02:17]

Done. Removed TODO, added more info/context to http://crbug.com/685362

+  // and vend all the objects from there.
+  static DownloadUIAdapter* FromOfflinePageModel(OfflinePageModel* model);
+  static void AttachToOfflinePageModel(DownloadUIAdapter* adapter,
+                                       OfflinePageModel* model);
+
   // This adapter is potentially shared by UI elements, each of which adds
   // itself as an observer.
   // When the last observer is removed, cached list of items is destroyed and