GitLab

https://gpuweb.github.io/gpuweb/#depth-stencil-attachments says
stencilLoadValue is "unsigned long", not "long". This CL fixes it.

Bug: 877147
Change-Id: I73592bc24800ee15c1b105473f6e79a52e8abe57
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1815019Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: François Beaufort <beaufort.francois@gmail.com>
Cr-Commit-Position: refs/heads/master@{#699339}