Roll shaderc from 28652ef368ef to d07e90e7ff54 (1 revision)

https://chromium.googlesource.com/external/github.com/google/shaderc/+log/28652ef368ef..d07e90e7ff54

2020-07-17 bclayton@google.com Kokoro: Migrate linux bots to ubuntu docker image

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: Icf6f41d2846fd420f3ce12bd688a660aa6a71ac9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2305092
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#789732}

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': '28652ef368ef2e85e28ddc41bf69cc79705d4865',
+  'shaderc_revision': 'd07e90e7ff543f80a41916cd52b259b279a16611',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.