Roll src/third_party/SPIRV-Tools/src fe39a6f342f6..981763ec74fc (2 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/fe39a6f342f6..981763ec74fc


git log fe39a6f342f6..981763ec74fc --date=short --no-merges --format='%ad %ae %s'
2018-11-21 zoddicus@users.noreply.github.com Ensure correct Addressing and Memory model set for WebGPU (#2093)
2018-11-21 afdx@google.com Initial commit for spirv-reduce. (#2056)


Created with:
  gclient setdep -r src/third_party/SPIRV-Tools/src@981763ec74fc

The AutoRoll server is located here: https://autoroll.skia.org/r/spirv-tools-chromium-autoroll

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

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=dsinclair@chromium.org

Change-Id: I976c6dea5c97685247a4021e0814939fd5dc3810
Reviewed-on: https://chromium-review.googlesource.com/c/1347517Reviewed-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@{#610292}

DEPS

@@ -220,7 +220,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.
-  'spv_tools_revision': 'fe39a6f342f653c6b1115f21df496ca572d12611',
+  'spv_tools_revision': '981763ec74fc2d59e2bc98e8f15377d2de9b73fd',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.