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This reverts commit c4d25f5b.

Reason for revert: This made some tests for Video and Audio players flaky crbug.com/896529

Original change's description:
> Unify JSErrorCounter for Files, Audio, Video and Gallery apps.
>
> Bug: 893430
> Change-Id: I4cb8149eaec9c9ab22700905dae804ac893fdb6c
> Reviewed-on: https://chromium-review.googlesource.com/c/1282517
> Reviewed-by: Noel Gordon <noel@chromium.org>
> Reviewed-by: Trent Apted <tapted@chromium.org>
> Commit-Queue: Luciano Pacheco <lucmult@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#600308}

TBR=tapted@chromium.org,noel@chromium.org,lucmult@chromium.org

Change-Id: I676ef1e26b98ff842158501ebf1221520db18bc9
Bug: 896529
Reviewed-on: https://chromium-review.googlesource.com/c/1287729
Commit-Queue: Luciano Pacheco <lucmult@chromium.org>
Reviewed-by: Luciano Pacheco <lucmult@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600642}