Roll third_party/externals/swiftshader 711867566999..81e08df29531 (9 commits)
Roll third_party/externals/swiftshader 711867566999..81e08df29531 (9 commits)

https://swiftshader.googlesource.com/SwiftShader.git/+log/711867566999..81e08df29531

git log 711867566999..81e08df29531 --date=short --first-parent --format='%ad %ae %s'
2020-04-15 sugoi@google.com Fix fragments depth values not being clamped
2020-04-14 amaiorano@google.com CMake: split out Vulkan sources into separate CMakeLists
2020-04-14 bclayton@google.com Device: Rename RoutineCacheT to RoutineCache
2020-04-14 bclayton@google.com Device: Don't inherit [Vertex,Setup,Pixel]Processor.
2020-04-14 digit@google.com [vulkan] Implement VK_FUCHSIA_external_memory extension.
2020-04-14 capn@google.com Reuse Store logic for Modf and Frexp output parameters
2020-04-14 capn@google.com Separate Operand store logic from EmitStore()
2020-04-14 capn@google.com Only store component count in Operand
2020-04-14 capn@google.com Rename size/sizeInComponents to componentCount

Created with:
  gclient setdep -r third_party/externals/swiftshader@81e08df29531

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-skia-autoroll
Please CC 7cdab2cfab351f23814786ba39716e90eed69047@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

Cq-Include-Trybots: skia/skia.primary:Test-Debian10-Clang-GCE-GPU-SwiftShader-x86_64-Debug-All-SwiftShader
Bug: None
Tbr: 7cdab2cfab351f23814786ba39716e90eed69047@google.com
Change-Id: Iee827a407a1aa519b06fc9b763eacf98b1d55c53
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/283583
Reviewed-by: skia-autoroll <e034c62197df5622a9c1bef8b3e012f87a0a9840@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <e034c62197df5622a9c1bef8b3e012f87a0a9840@skia-public.iam.gserviceaccount.com>

aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia