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Two capabilities have been added to the GetSettledFetches task:
1. Support CacheQueryOptions, while fetching responses for completed
fetches from the Cache Storage.
2. Support for filtering responses corresponding to a specific request from
completed fetches.

Both will be useful to support match() and matchAll() methods on
BackgroundFetchSettledEvent.

Bug: 863016
Change-Id: Icababdd71cd1687644cacc9460550de89bdfc4d5
Reviewed-on: https://chromium-review.googlesource.com/1140324Reviewed-by: Peter Beverloo <peter@chromium.org>
Reviewed-by: Rayan Kanso <rayankans@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Commit-Queue: Mugdha Lakhani <nator@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577269}