Roll third_party/externals/swiftshader 5978150..4c84379 (1 commits)

https://swiftshader.googlesource.com/SwiftShader.git/+log/5978150ed763..4c84379fd3cb


git log 5978150..4c84379 --date=short --no-merges --format='%ad %ae %s'
2018-10-26 capn@google.com Remove Vulkan 32-bit Visual Studio configuration.


Created with:
  gclient setdep -r third_party/externals/swiftshader@4c84379fd3cb

The AutoRoll server is located here: https://autoroll.skia.org/r/swiftshader-skia-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

CQ_INCLUDE_TRYBOTS=skia.primary:Test-Debian9-Clang-GCE-GPU-SwiftShader-x86_64-Debug-All-SwiftShader
TBR=brianosman@google.com

Change-Id: Ic2b1e276288b909e3a528d7cb0d1091710e42356
Reviewed-on: https://skia-review.googlesource.com/c/165223
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -30,7 +30,7 @@ deps = {
   "third_party/externals/sfntly"          : "https://chromium.googlesource.com/external/github.com/googlei18n/sfntly.git@b18b09b6114b9b7fe6fc2f96d8b15e8a72f66916",
   "third_party/externals/spirv-headers"   : "https://skia.googlesource.com/external/github.com/KhronosGroup/SPIRV-Headers.git@661ad91124e6af2272afd00f804d8aa276e17107",
   "third_party/externals/spirv-tools"     : "https://skia.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git@e9e4393b1c5aad7553c05782acefbe32b42644bd",
-  "third_party/externals/swiftshader"     : "https://swiftshader.googlesource.com/SwiftShader@5978150ed7631769ded24c9d2695423c7f2accd6",
+  "third_party/externals/swiftshader"     : "https://swiftshader.googlesource.com/SwiftShader@4c84379fd3cb0e734bee98a050f4f80c9308d8e0",
   #"third_party/externals/v8"              : "https://chromium.googlesource.com/v8/v8.git@5f1ae66d5634e43563b2d25ea652dfb94c31a3b4",
   "third_party/externals/zlib"            : "https://chromium.googlesource.com/chromium/src/third_party/zlib@ea3ba903faac98b64b2bf8de5e98cd97b335a474",
   "third_party/externals/Nima-Cpp"      : "https://github.com/2d-inc/Nima-Cpp.git@4bd02269d7d1d2e650950411325eafa15defb084",