Roll third_party/SwiftShader fb7ca1d5aca5..b64fbfec4dcd (3 commits)
Roll third_party/SwiftShader fb7ca1d5aca5..b64fbfec4dcd (3 commits)

https://swiftshader.googlesource.com/SwiftShader.git/+log/fb7ca1d5aca5..b64fbfec4dcd

git log fb7ca1d5aca5..b64fbfec4dcd --date=short --first-parent --format='%ad %ae %s'
2019-11-30 bclayton@google.com VkPipeline: Replace spirv-opt list with RegisterPerformancePasses()
2019-11-29 paulthomson@google.com Regres: refactor for use as a library
2019-11-29 swiftshader.regress@gmail.com Regres: Update test lists @ fb7ca1d5

Created with:
  gclient setdep -r third_party/SwiftShader@b64fbfec4dcd

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 470c533e86f4f848c98c7e11fffc2d043494a401@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: 470c533e86f4f848c98c7e11fffc2d043494a401@google.com
Change-Id: Id3d9dfdb0769511da8391220411aac9726ebb6b2
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1946094
Reviewed-by: angle-autoroll <09ea9b8bac6cceb6ec3b72e615745c3a1e982ce2@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <09ea9b8bac6cceb6ec3b72e615745c3a1e982ce2@skia-public.iam.gserviceaccount.com>

ppy/angle,ppy/angle,ppy/angle,ppy/angle