Roll src/third_party/skia f5132a05c893..7676f4ecf3ec (2 commits)

https://skia.googlesource.com/skia.git/+log/f5132a05c893..7676f4ecf3ec

git log f5132a05c893..7676f4ecf3ec --date=short --first-parent --format='%ad %ae %s'
2020-04-28 scroggo@google.com Remove SkFrontBufferedStream
2020-04-28 kjlubick@google.com [infra] Add POC task driver

Created with:
  gclient setdep -r src/third_party/skia@7676f4ecf3ec

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 ethannicholas@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: ethannicholas@google.com
Change-Id: I7d0fd3cabb07677cffb808f236586f217e3d89bd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2170295Reviewed-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@{#763376}

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': 'f5132a05c893a86f8bf26bcf3253985d9973fea2',
+  'skia_revision': '7676f4ecf3ec2f544701465faca1d33af1489822',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.