Roll src/third_party/SPIRV-Tools/src 903514f95445..b07993ebf420 (3 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/903514f95445..b07993ebf420


git log 903514f95445..b07993ebf420 --date=short --no-merges --format='%ad %ae %s'
2018-09-26 dj2@everburning.com Remove SetContextMessageConsumer from markv_codec_test (#1926)
2018-09-26 dj2@everburning.com Remove stats use of internal API (#1924)
2018-09-26 stevenperron@google.com Allow 0 as argument to scalar replacement. (#1917)


Created with:
  gclient setdep -r src/third_party/SPIRV-Tools/src@b07993ebf420

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: I82ff2543a0bf7dd393cc6ef9d5fe4c8e89cb47b7
Reviewed-on: https://chromium-review.googlesource.com/1246231Reviewed-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@{#594401}

DEPS

@@ -213,7 +213,7 @@ 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': '903514f95445267754e28f0cd8def22e9533ebe8',
+  'spv_tools_revision': 'b07993ebf420803440143f1392398c788e8b0456',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.