Reland "Add quota usage details tests for all other storage backends."

This is a reland of 548e7b5e622ad79155ff95ef26738d7a40fe9397

Original change's description:
> Add quota usage details tests for all other storage backends.
> 
> IndexedDB test was included in parent CL.
> 
> Bug: 904000
> Test: 
> Change-Id: Icc3462f13d0dce0197a8ec54f22d5ad794a51292
> Reviewed-on: https://chromium-review.googlesource.com/c/1334659
> Reviewed-by: Victor Costan <pwnall@chromium.org>
> Reviewed-by: Joshua Bell <jsbell@chromium.org>
> Commit-Queue: Jarryd Goodman <jarrydg@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#616398}

Bug: 904000
Change-Id: I507ec17eabc8e323a7c6418075d4be4787d4c5df
Reviewed-on: https://chromium-review.googlesource.com/c/1378805
Reviewed-by: Joshua Bell <jsbell@chromium.org>
Commit-Queue: Jarryd Goodman <jarrydg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#617285}
5 files changed