Roll ANGLE from bc9d2d7de9d4 to 993f388967f8 (2 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/bc9d2d7de9d4..993f388967f8

2021-12-22 angle-autoroll@skia-public.iam.gserviceaccount.com Roll Chromium from 9ca41364d3dc to 274ab850e849 (341 revisions)
2021-12-21 ynovikov@chromium.org Skip RenderbufferDrawStencilThenUnresolveStencil on Linux Vulkan AMD

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/angle-dawn-autoroll
Please CC enga@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in ANGLE: https://bugs.chromium.org/p/angleproject/issues/entry
To file a bug in Dawn: https://bugs.chromium.org/p/dawn/issues/entry

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/main/autoroll/README.md

Bug: None
Tbr: enga@google.com
Change-Id: I8de8c2b7466286d0f73ea2d901bef1218b1684f0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/74320
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 4d1d173..738fe4b 100644
--- a/DEPS
+++ b/DEPS
@@ -116,7 +116,7 @@
   },
 
   'third_party/angle': {
-    'url': '{chromium_git}/angle/angle@bc9d2d7de9d4f789218de0c47c9026c8c122f16d',
+    'url': '{chromium_git}/angle/angle@993f388967f8725d1ef8ce138ce8be4c0ae852ed',
     'condition': 'dawn_standalone',
   },