Roll Skia from acdc28340480 to 7c64798b3d0c (1 revision)

https://skia.googlesource.com/skia.git/+log/acdc28340480..7c64798b3d0c

2020-10-23 jvanverth@google.com Add control to toggle immediate/delayed MTLDrawable acquisition

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-skiabot-test-autoroll
Please CC borenet@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/+doc/master/autoroll/README.md

Tbr: borenet@google.com
Change-Id: I61ef3d30d3a9afbec07d65e4a69f50d2a7ee32a3
Reviewed-on: https://skia-review.googlesource.com/c/skiabot-test/+/329389
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 113e4a4..38e1530 100644
--- a/DEPS
+++ b/DEPS
@@ -3,7 +3,7 @@
   # 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': 'acdc28340480c58b402712e6d75f33ef73ad43a8',
+  'skia_revision': '7c64798b3d0c650b32f243a20f6a8e95e06f8c2c',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.