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}
6 files changed