Roll src/third_party/skia 4f32a29a69b4..6006105f67c3 (3 commits)

https://skia.googlesource.com/skia.git/+log/4f32a29a69b4..6006105f67c3

git log 4f32a29a69b4..6006105f67c3 --date=short --no-merges --format='%ad %ae %s'
2019-11-13 csmartdalton@google.com Implement mixed samples support in vulkan
2019-11-13 csmartdalton@google.com Enforce extra constraints for mixed samples at GrCaps level
2019-11-13 emircan@google.com Disable VkProtectedContext_DDLMakeRenderTargetTest

Created with:
  gclient setdep -r src/third_party/skia@6006105f67c3

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 halcanary@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
TBR=halcanary@google.com

Bug: None
Change-Id: I29f4ac39facf9a2e7010b265e4f43275867383d8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1914614Reviewed-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@{#715111}

DEPS

@@ -172,7 +172,7 @@ 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': '4f32a29a69b4c2eeefb5c90a4ac2cc1c307a9e03',
+  'skia_revision': '6006105f67c3109aa6d805e0ad23bdac5ad518c7',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.