Roll src/third_party/swiftshader 20507fa9c209..bcc71a322953 (2 commits)

https://swiftshader.googlesource.com/SwiftShader.git/+log/20507fa9c209..bcc71a322953


git log 20507fa9c209..bcc71a322953 --date=short --no-merges --format='%ad %ae %s'
2019-04-21 bclayton@google.com Reactor: Remove trailing semicolons.
2019-04-21 bclayton@google.com Remove LLVM 3 from SwiftShader and all references.


Created with:
  gclient setdep -r src/third_party/swiftshader@bcc71a322953

The AutoRoll server is located here: https://autoroll.skia.org/r/swiftshader-chromium-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=luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel

BUG=chromium:b/130343040
TBR=swiftshader-team+autoroll@chromium.org

Change-Id: I3d6157db2e87a0d4f2cbdab1cc12d888f06a86da
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1576261Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#652790}

DEPS

@@ -145,7 +145,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.
-  'swiftshader_revision': '20507fa9c209d607b92448b4563b70fb73978d14',
+  'swiftshader_revision': 'bcc71a3229533f1d73647a95a8dbb607a5b90d57',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling PDFium
   # and whatever else without interference from each other.