Need to create a doc a link here.

Can be removed: 

https://cs.chromium.org/chromium/src/chrome/browser/android/offline_pages/recent_tab_helper.cc?rcl=e507bb334d3c66917eec47fbc476ed0a7d62f33f&l=176

Both TODOs in this fiel can be just removed:
https://cs.chromium.org/chromium/src/components/offline_pages/core/downloads/download_ui_item.cc?rcl=de3f4bede90e857cb62f9f0160e80659561d9324&l=27


Can be removed, no UMA here is really necessary. UMA reporting user actions should be closer to initiating of the user actions.
https://cs.chromium.org/chromium/src/components/offline_pages/core/downloads/download_ui_adapter.cc?rcl=de3f4bede90e857cb62f9f0160e80659561d9324&l=322

Should remove this one (work already done):
https://cs.chromium.org/chromium/src/components/offline_pages/core/downloads/download_ui_adapter_unittest.cc?rcl=de3f4bede90e857cb62f9f0160e80659561d9324&l=348

Don't do anything (waiting for future work):
https://cs.chromium.org/chromium/src/chrome/browser/android/offline_pages/offline_page_utils.cc?rcl=de3f4bede90e857cb62f9f0160e80659561d9324&l=241

https://cs.chromium.org/chromium/src/components/offline_pages/core/offline_page_model_impl_unittest.cc?rcl=de3f4bede90e857cb62f9f0160e80659561d9324&l=1303

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/9e468760955a427460f9d8ebb604f0e6a24a6c35

commit 9e468760955a427460f9d8ebb604f0e6a24a6c35
Author: fgorski <fgorski@chromium.org>
Date: Wed Mar 29 22:53:41 2017

[Offline pages] Removing obsolete TODOs as part of PE fixit

Removing TODOs, which are obsolete or which make no sense to act upon
at this point in time.

BUG= 685523 
R=chili@chromium.org

Review-Url: https://codereview.chromium.org/2782673002
Cr-Commit-Position: refs/heads/master@{#460562}

[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/OfflinePageTabObserver.java
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/OfflinePageUtils.java
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/downloads/OfflinePageDownloadItem.java
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/chrome/browser/android/offline_pages/evaluation/offline_page_evaluation_bridge.cc
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/chrome/browser/android/offline_pages/offline_page_mhtml_archiver.cc
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/chrome/browser/android/offline_pages/request_coordinator_factory.cc
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/components/offline_pages/core/background/request_queue.cc
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/components/offline_pages/core/background/request_queue_store_sql.cc
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/components/offline_pages/core/background/request_queue_unittest.cc
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/components/offline_pages/core/background/save_page_request.cc
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/components/offline_pages/core/offline_page_archiver.h
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/components/offline_pages/core/offline_page_metadata_store_impl_unittest.cc
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/components/offline_pages/core/offline_page_metadata_store_sql.cc
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/components/offline_pages/core/offline_page_model_impl.cc
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/components/offline_pages/core/offline_page_test_archiver.h
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/components/offline_pages/core/offline_page_test_store.cc
[modify] https://crrev.com/9e468760955a427460f9d8ebb604f0e6a24a6c35/components/offline_pages/core/offline_store_types.h

There is a newer bug on this: bug 714264.
Not duplicate but superceding.