Capture/Replay: Fix stride in compressed texture caching.
Capture/Replay: Fix stride in compressed texture caching.

We were saving "width" bytes instead of "width * pixelSize". This was
causing incorrect rendering in T-Rex and Manhattan.

Bug: angleproject:4488
Change-Id: Ib5d38aaf813fb26905aedc155cc13b9d1597ec4c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2109336
Reviewed-by: Cody Northrop <94770d7fe1cce6ea0791fa9927c1107de4d2e37b@google.com>
Commit-Queue: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>

ppy/angle,ppy/angle,ppy/angle,ppy/angle