The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a7273fae139189164a0a6733cd717e570ebe343e

commit a7273fae139189164a0a6733cd717e570ebe343e
Author: dtrainor <dtrainor@chromium.org>
Date: Fri Apr 28 08:27:18 2017

Make the ThrottledOfflineContentProvider better

Simple improvements to make the throttle work in a more expected way.
- Calling any method to update the underlying contents of the throttle
will allow the all queued updates to flush.
- Calling updates infrequently will not queue.  Instead we track the
time since the last update and don't queue if the time has been long
enough.
- Hook the throttle into the JNI bridge for the Android
OfflineContentProvider.

BUG= 715669 

Review-Url: https://codereview.chromium.org/2835323005
Cr-Commit-Position: refs/heads/master@{#467930}

[modify] https://crrev.com/a7273fae139189164a0a6733cd717e570ebe343e/components/offline_items_collection/core/android/offline_content_aggregator_bridge.cc
[modify] https://crrev.com/a7273fae139189164a0a6733cd717e570ebe343e/components/offline_items_collection/core/android/offline_content_aggregator_bridge.h
[modify] https://crrev.com/a7273fae139189164a0a6733cd717e570ebe343e/components/offline_items_collection/core/throttled_offline_content_provider.cc
[modify] https://crrev.com/a7273fae139189164a0a6733cd717e570ebe343e/components/offline_items_collection/core/throttled_offline_content_provider.h
[modify] https://crrev.com/a7273fae139189164a0a6733cd717e570ebe343e/components/offline_items_collection/core/throttled_offline_content_provider_unittest.cc