Roll src/third_party/skia ce09fb43963c..6dbd7ff34a49 (8 commits)

https://skia.googlesource.com/skia.git/+log/ce09fb43963c..6dbd7ff34a49

git log ce09fb43963c..6dbd7ff34a49 --date=short --first-parent --format='%ad %ae %s'
2020-01-06 mtklein@google.com first foray into SkVM image shaders
2020-01-06 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2020-01-06 bsalomon@google.com Remove unused varying type param from GrGLSLShaderBuilder texture methods.
2020-01-06 brianosman@google.com Remove SkRuntimeShaderFactory
2020-01-06 robertphillips@google.com Add GrCompressedDimensions helper function
2020-01-06 csmartdalton@google.com Move "set_path_pt" from SampleAAGeometry into ToolUtils
2020-01-06 kjlubick@google.com [canvaskit] Remove support for T1 fonts and reduce code size
2020-01-06 kjlubick@google.com Make tracing data a compile-time option

Created with:
  gclient setdep -r src/third_party/skia@6dbd7ff34a49

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 jvanverth@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: jvanverth@google.com
Change-Id: I0e407dc41a6f98f7b2f12f0670e17fe23e68967d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1988748Reviewed-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@{#728643}

DEPS

@@ -181,7 +181,7 @@ 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': 'ce09fb43963cda026aae062b6c176614aca514b1',
+  'skia_revision': '6dbd7ff34a496f362163e3f082e3d4cb357808b2',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.