Roll Skia from 57115c0f200c to e7541d9b0884 (1 revision)

https://skia.googlesource.com/skia.git/+log/57115c0f200c..e7541d9b0884

2021-01-13 mtklein@google.com make SkShaderBase::onProgram pure virtual

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: Id81891e51cb6a5b7f9634263379d29d2badf5173
Reviewed-on: https://skia-review.googlesource.com/c/skiabot-test/+/353724
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 0bc7be6..68e6437 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': '57115c0f200ccb9ceb75ef2759af85a425f71fee',
+  'skia_revision': 'e7541d9b0884e559b208f13a04ac1fb8a1a20c2f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.