Roll SwiftShader from 2e74d5dc03df to e823eef17385 (4 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/2e74d5dc03df..e823eef17385

2022-01-20 bclayton@google.com BUILD.gn: Remove XCB sources for chromeos.
2022-01-20 bclayton@google.com BUILD.gn: Remove VK_USE_PLATFORM_XCB_KHR define
2022-01-20 capn@google.com Remove heap size padding
2022-01-20 capn@google.com Disable Kokoro builds with REACTOR_EMIT_DEBUG_INFO/PRINT_LOCATION

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

To file a bug in SwiftShader: https://bugs.chromium.org/p/swiftshader/issues/entry
To file a bug in ANGLE: https://bugs.chromium.org/p/angleproject/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: angleproject:6444
Tbr: syoussefi@google.com
Change-Id: I3f5e70a662cc81908008294f521fc24d7f640032
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3406608
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -496,7 +496,7 @@ deps = {
   },
 
   'third_party/SwiftShader': {
-    'url': '{swiftshader_git}/SwiftShader@2e74d5dc03dfbfab0821f9aac5d2b3ad317eab28',
+    'url': '{swiftshader_git}/SwiftShader@e823eef173854c8a970dee698cbf8c0c261913df',
     'condition': 'not build_with_chromium',
   },