The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ff3a7d889cd3326bc5f080cfd7d7663c2abdd604

commit ff3a7d889cd3326bc5f080cfd7d7663c2abdd604
Author: romax <romax@chromium.org>
Date: Mon May 09 22:50:00 2016

[Offline Pages] Implement OfflinePageStorageManager.

OfflinePageStorageManager should be responsible for making offline page
model to clear expired offline pages automatically.

BUG= 609357 

Review-Url: https://codereview.chromium.org/1947323002
Cr-Commit-Position: refs/heads/master@{#392455}

[modify] https://crrev.com/ff3a7d889cd3326bc5f080cfd7d7663c2abdd604/components/offline_pages.gypi
[modify] https://crrev.com/ff3a7d889cd3326bc5f080cfd7d7663c2abdd604/components/offline_pages/BUILD.gn
[modify] https://crrev.com/ff3a7d889cd3326bc5f080cfd7d7663c2abdd604/components/offline_pages/offline_page_model.cc
[modify] https://crrev.com/ff3a7d889cd3326bc5f080cfd7d7663c2abdd604/components/offline_pages/offline_page_model.h
[modify] https://crrev.com/ff3a7d889cd3326bc5f080cfd7d7663c2abdd604/components/offline_pages/offline_page_model_unittest.cc
[add] https://crrev.com/ff3a7d889cd3326bc5f080cfd7d7663c2abdd604/components/offline_pages/offline_page_storage_manager.cc
[add] https://crrev.com/ff3a7d889cd3326bc5f080cfd7d7663c2abdd604/components/offline_pages/offline_page_storage_manager.h
[add] https://crrev.com/ff3a7d889cd3326bc5f080cfd7d7663c2abdd604/components/offline_pages/offline_page_storage_manager_unittest.cc

Reopening, having more related CLs.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/44fdf4d230beaab374b3cb6d442e0d2fbeb14366

commit 44fdf4d230beaab374b3cb6d442e0d2fbeb14366
Author: romax <romax@chromium.org>
Date: Thu May 12 02:31:19 2016

[Offline Pages] Introducing StorageManagerClient interface.

BUG= 609357 

Review-Url: https://codereview.chromium.org/1965633002
Cr-Commit-Position: refs/heads/master@{#393153}

[modify] https://crrev.com/44fdf4d230beaab374b3cb6d442e0d2fbeb14366/components/offline_pages/offline_page_model.cc
[modify] https://crrev.com/44fdf4d230beaab374b3cb6d442e0d2fbeb14366/components/offline_pages/offline_page_model.h
[modify] https://crrev.com/44fdf4d230beaab374b3cb6d442e0d2fbeb14366/components/offline_pages/offline_page_storage_manager.cc
[modify] https://crrev.com/44fdf4d230beaab374b3cb6d442e0d2fbeb14366/components/offline_pages/offline_page_storage_manager.h
[modify] https://crrev.com/44fdf4d230beaab374b3cb6d442e0d2fbeb14366/components/offline_pages/offline_page_storage_manager_unittest.cc
[modify] https://crrev.com/44fdf4d230beaab374b3cb6d442e0d2fbeb14366/components/offline_pages/offline_page_types.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/13aa507d5e0488ebbbe5e4f8afd0942e5435689b

commit 13aa507d5e0488ebbbe5e4f8afd0942e5435689b
Author: romax <romax@chromium.org>
Date: Mon May 23 19:17:20 2016

[Offline Pages] Updated clearing logic in storage manager.

Updated clearing logic in storage manager, adapted to new changes from archive manager.
Also removed the storage manager related test in model_unittest, while
adding some tests in storage_manager_unittest.

BUG= 609357 

Review-Url: https://codereview.chromium.org/1986673002
Cr-Commit-Position: refs/heads/master@{#395384}

[modify] https://crrev.com/13aa507d5e0488ebbbe5e4f8afd0942e5435689b/components/offline_pages/archive_manager.cc
[modify] https://crrev.com/13aa507d5e0488ebbbe5e4f8afd0942e5435689b/components/offline_pages/archive_manager.h
[modify] https://crrev.com/13aa507d5e0488ebbbe5e4f8afd0942e5435689b/components/offline_pages/offline_page_model.cc
[modify] https://crrev.com/13aa507d5e0488ebbbe5e4f8afd0942e5435689b/components/offline_pages/offline_page_storage_manager.cc
[modify] https://crrev.com/13aa507d5e0488ebbbe5e4f8afd0942e5435689b/components/offline_pages/offline_page_storage_manager.h
[modify] https://crrev.com/13aa507d5e0488ebbbe5e4f8afd0942e5435689b/components/offline_pages/offline_page_storage_manager_unittest.cc