Roll src/third_party/skia c2fe5ee2b3a1..6bc4a7405acc (1 commits)

https://skia.googlesource.com/skia.git/+log/c2fe5ee2b3a1..6bc4a7405acc

git log c2fe5ee2b3a1..6bc4a7405acc --date=short --first-parent --format='%ad %ae %s'
2020-03-11 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 8be72df60462..16ae92a4ee52 (1 commits)

Created with:
  gclient setdep -r src/third_party/skia@6bc4a7405acc

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-autoroll
Please CC brianosman@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

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux-blink-rel;luci.chromium.try:linux-chromeos-compile-dbg;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Bug: None
Tbr: brianosman@google.com
Change-Id: I56bcafb8560d4c36b9294b1c34d96ead54d3263a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2094634Reviewed-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@{#749065}

DEPS

@@ -175,7 +175,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.
-  'skia_revision': 'c2fe5ee2b3a1f8ee7e5b09311ad19c615428b590',
+  'skia_revision': '6bc4a7405accc3d96816c71f81c47a631564dd94',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.