Roll shaderc from 61649cc4962e to 73b54fac553a (1 revision)

https://chromium.googlesource.com/external/github.com/google/shaderc/+log/61649cc4962e..73b54fac553a

2021-01-18 rharrison@google.com Deprecate WebGPU SPIRV support (#1167)

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/+doc/master/autoroll/README.md

Tbr: radial-bots+chrome-roll@google.com
Change-Id: I980f0bbd17ff5adb0706e9d78514f749d1c4f246
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2635234Reviewed-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@{#844607}

DEPS

@@ -314,7 +314,7 @@ 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': '61649cc4962e3fe042894d82f60ce7177050da61',
+  'shaderc_revision': '73b54fac553a81f60f59e67c00606851b95df434',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.