Roll src/third_party/skia b8d7e0009824..dcfb2338586c (8 commits)

https://skia.googlesource.com/skia.git/+log/b8d7e0009824..dcfb2338586c

git log b8d7e0009824..dcfb2338586c --date=short --first-parent --format='%ad %ae %s'
2020-05-13 adlai@google.com Enable kernel caching in GrMatrixConvolutionEffect
2020-05-13 bsalomon@google.com Add workaround for TecnoSpark 3 Pro MIP mapping
2020-05-13 egdaniel@google.com Add GrContext getter to SkSurface.
2020-05-13 michaelludwig@google.com Simplify GrClip::getConservativeBounds() signature
2020-05-13 brianosman@google.com SkRuntimeEffect: Support late bound uniforms in raster
2020-05-13 egdaniel@google.com A flush and submit apis to public headers.
2020-05-13 borenet@google.com [infra] chrome_release_branch: maintain the last 3 branches
2020-05-13 brianosman@google.com Plumbing SkMatrixProvider into the raster backend

Created with:
  gclient setdep -r src/third_party/skia@dcfb2338586c

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 jlavrova@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: jlavrova@google.com
Change-Id: I671c7d47149c5b069e55fbe4bcd1967f8b6115a6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2199428Reviewed-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@{#768486}

DEPS

@@ -178,7 +178,7 @@ 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': 'b8d7e00098241d5d2397455c181cb64b24f7ec04',
+  'skia_revision': 'dcfb2338586c3f3288b99b79acad5b6e157efa42',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.