Roll glslang from f881f08358b0 to a1a497ffe792 (1 revision)

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/f881f08358b0..a1a497ffe792

2020-08-04 john@johnkgo.com SPV: Use more correct SPV-Tools environment, partially addressing #2290

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/glslang-chromium-autoroll
Please CC geofflang@google.com,radial-bots+chrome-roll@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/master/autoroll/README.md

Cq-Include-Trybots: luci.chromium.try:android_angle_vk32_deqp_rel_ng;luci.chromium.try:android_angle_vk32_rel_ng;luci.chromium.try:android_angle_vk64_deqp_rel_ng;luci.chromium.try:android_angle_vk64_rel_ng;luci.chromium.try:linux_angle_deqp_rel_ng;luci.chromium.try:linux-angle-rel;luci.chromium.try:win-angle-rel-32;luci.chromium.try:win-angle-rel-64;luci.chromium.try:win-angle-deqp-rel-32;luci.chromium.try:win-angle-deqp-rel-64
Tbr: geofflang@google.com,radial-bots+chrome-roll@google.com
Change-Id: I0e169e4c9c28ea3444fc02940cdcbd8e42994cbb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2336659Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#794496}

DEPS

@@ -946,7 +946,7 @@ deps = {
     Var('chromium_git') + '/codecs/libgav1.git' + '@' + 'e46493b9148e0d1e63f55b5890bff503822616e5',
 
   'src/third_party/glslang/src':
-    Var('chromium_git') + '/external/github.com/KhronosGroup/glslang.git' + '@' + 'f881f08358b098b8bd1e3b402ab35b5177aa76b9',
+    Var('chromium_git') + '/external/github.com/KhronosGroup/glslang.git' + '@' + 'a1a497ffe79218d8239a913d29ee26e74d201220',
 
   'src/third_party/google_toolbox_for_mac/src': {
       'url': Var('chromium_git') + '/external/github.com/google/google-toolbox-for-mac.git' + '@' + Var('google_toolbox_for_mac_revision'),