Roll src/third_party/shaderc/src 63e5e057851d..5043101ccdf5 (1 commits)

https://chromium.googlesource.com/external/github.com/google/shaderc/+log/63e5e057851d..5043101ccdf5

git log 63e5e057851d..5043101ccdf5 --date=short --no-merges --format='%ad %ae %s'
2019-11-13 dneto@google.com Android.mk: Fix detection of spirv-headers directory (#887)

Created with:
  gclient setdep -r src/third_party/shaderc/src@5043101ccdf5

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/shaderc-chromium-autoroll
Please CC 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/+/master/autoroll/README.md

TBR=radial-bots+chrome-roll@google.com

Bug: None
Change-Id: I0c7de6a584e290df869d8c02320e725456fb9a31
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1914861Reviewed-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@{#715127}

DEPS

@@ -303,7 +303,7 @@ 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.
-  'shaderc_revision': '63e5e057851dc6de4faa5b97a96d174f155cba7f',
+  'shaderc_revision': '5043101ccdf51896c5f0ac04d139099580059870',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.