Roll ANGLE from db3b2875723b to 21ffb23a58c8 (3 revisions)

db3b287572..21ffb23a58

2023-03-29 lexa.knyazev@gmail.com Add sample coverage regression tests
2023-03-29 syoussefi@chromium.org Translator: Initialize out arguments too for WebGL
2023-03-28 cclao@google.com Vulkan: Add more blitFramebuffer test

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 amaiorano@google.com,angle-team+autoroll@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: amaiorano@google.com
Change-Id: I65e0d174d7239d7aaa8087ce042854ffb78675d3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/125700
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -132,7 +132,7 @@ deps = {
   },
 
   'third_party/angle': {
-    'url': '{chromium_git}/angle/angle@db3b2875723b255fbf4569f6346e9bd6d1cac78e',
+    'url': '{chromium_git}/angle/angle@21ffb23a58c8f69b3575299cede7f0a3df301ddd',
     'condition': 'dawn_standalone',
   },