Add image decode performance to new harness

The legacy image_decoding.* benchmarks were using an old harness which
has been deprecated. Those benchmarks have been removed.

Because image decode performance is important and should be tracked, we
need to add performance benchmarks which use the new harness.

BUG=717533

Change-Id: I06db01b4cf66875eaaee681bdd6c5b6991ccdaef
Reviewed-on: https://chromium-review.googlesource.com/646242
Commit-Queue: Adenilson Cavalcanti <cavalcantii@chromium.org>
Reviewed-by: Noel Gordon <noel@chromium.org>
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Cr-Commit-Position: refs/heads/master@{#500379}
NOKEYCHECK=True
GitOrigin-RevId: 3cc66f46716f4249ff5843d632f4d826ae7ef6ee
3 files changed