Roll src/third_party/spirv-headers/src 7cb43009d543..bbf63435c37a (2 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Headers.git/+log/7cb43009d543..bbf63435c37a


git log 7cb43009d543..bbf63435c37a --date=short --no-merges --format='%ad %ae %s'
2018-11-28 johnkslang@users.noreply.github.com Merge pull request #84 from grorg/whlsl
2018-11-26 johnkslang@users.noreply.github.com Merge pull request #83 from dgkoch/SPV_EXT_fragment_invocation_density


Created with:
  gclient setdep -r src/third_party/spirv-headers/src@bbf63435c37a

The AutoRoll server is located here: https://autoroll.skia.org/r/spirv-headers-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: Ief7d43f768b17d8c5edbe70dbace7ddad1023656
Reviewed-on: https://chromium-review.googlesource.com/c/1354178Reviewed-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@{#611828}

DEPS

@@ -224,7 +224,7 @@ 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_headers_revision': '7cb43009d543e90698dd300eb26dfd6d9a9bb100',
+  'spv_headers_revision': 'bbf63435c37aafac5d1cdfc287401d87cd3ca364',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.