Roll Vulkan-Headers from 83825d55c7d5 to a0f1f5149d91 (1 revision)

83825d55c7..a0f1f5149d

2020-07-23 git@haasn.xyz Fix enum order for backwards compatibility

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/vulkan-headers-angle-autoroll
Please CC timvp@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

Change-Id: I25985607c096ddf8f17736410e7224a805f2b0e4
Bug: None
Tbr: timvp@google.com
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2319864
Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -62,7 +62,7 @@ vars = {
   'spirv_tools_revision': '8b5ed4448dfe92b41fa0e702242239c25a1bcd02',
 
   # Current revision of Khronos Vulkan-Headers.
-  'vulkan_headers_revision': '83825d55c7d522931124696ecb07ed48f2693e5c',
+  'vulkan_headers_revision': 'a0f1f5149d91d9ea460c19a7bbd281a1c604c8e7',
 
   # Current revision of Khronos Vulkan-Loader.
   'vulkan_loader_revision': 'bfe4f378aee6a2825b8112429cd46529d936babf',