Roll ANGLE from 56aee5d6407f to a1b9eb68e417 (8 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/56aee5d6407f..a1b9eb68e417

2021-12-11 gman@chromium.org Replace IOSurfaceSurfaceEAGL.mm table with less strict padding
2021-12-11 kpiddington@apple.com Metal: Fix M1 and iOS synchronization for readPixels
2021-12-11 gman@chromium.org Metal: Add maximum render target size validation
2021-12-11 gman@chromium.org Add early out validation in drawArraysCommon
2021-12-11 gman@chromium.org Metal: Refactor restartRange cache
2021-12-11 gman@chromium.org Metal: Fix Instanced Draw feature support on Simulator
2021-12-11 gman@chromium.org Metal: Refactors from Webkit
2021-12-10 gman@chromium.org Metal: Merge changes to mtlPixelFormatTable

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 cwallez@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: cwallez@google.com
Change-Id: I958ea11fb6752f84e96d4088cf045badecdfb210
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/72561
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 98a5b10..48e46fd 100644
--- a/DEPS
+++ b/DEPS
@@ -121,7 +121,7 @@
   },
 
   'third_party/angle': {
-    'url': '{chromium_git}/angle/angle@56aee5d6407f11022e9a91e43b224e693d041ce9',
+    'url': '{chromium_git}/angle/angle@a1b9eb68e41750c9d3869ce990b0c05362ff5aac',
     'condition': 'dawn_standalone',
   },