Roll third_party/vulkan-tools/src 698d82e38b39..1fbefe048387 (2 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/Vulkan-Tools.git/+log/698d82e38b39..1fbefe048387

git log 698d82e38b39..1fbefe048387 --date=short --first-parent --format='%ad %ae %s'
2020-04-06 joshua@froggi.es cube: Pick non-SRGB surface formats first
2020-04-06 joshua@froggi.es cube: Remove unncessary VK_FORMAT_UNDEFINED check for surface formats

Created with:
  gclient setdep -r third_party/vulkan-tools/src@1fbefe048387

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/vulkan-tools-angle-autoroll
Please CC jonahr@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/+/master/autoroll/README.md

Bug: None
Tbr: jonahr@google.com
Change-Id: I2b0ad5ede6e54cb9e288fdb1e3fa5c52a54c4fd6
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2139122
Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 8fd248a..a0becd9 100644
--- a/DEPS
+++ b/DEPS
@@ -55,7 +55,7 @@
   'vulkan_loader_revision': 'bb74deab0a4dc88ec0f6c808d4f9874e8629ce5e',
 
   # Current revision of Khronos Vulkan-Tools.
-  'vulkan_tools_revision': '698d82e38b39e94bf4d6013bcb2347813a69d78b',
+  'vulkan_tools_revision': '1fbefe048387b827a8f9859c0754bce2f09d1985',
 
   # Current revision of Khronos Vulkan-ValidationLayers.
   'vulkan_validation_revision': 'dbd073615280f0b737e96017c355ca75835abc1e',