Roll src/third_party/swiftshader bb305299f4de..232c456db8e9 (10 commits)

https://swiftshader.googlesource.com/SwiftShader.git/+log/bb305299f4de..232c456db8e9


git log bb305299f4de..232c456db8e9 --date=short --no-merges --format='%ad %ae %s'
2019-03-04 chrisforbes@google.com Fix setup code to deal with inverted area sign
2019-03-04 hliatis@google.com Implement vkGetSwapchainImagesKHR
2019-03-04 chiur@google.com Create CI for gcp_windows
2019-03-04 chrisforbes@google.com Remove some GL/D3D legacy format quirks from vulkan vertex buffers
2019-03-04 hliatis@google.com VkCreateSwapchainKHR and VkDestroySwapchainKHR
2019-03-04 chrisforbes@google.com Add support for conversion instructions
2019-03-04 chrisforbes@google.com Add support for OpDot
2019-03-04 chrisforbes@google.com Add support for OpUMulExtended, OpSMulExtended
2019-03-04 bclayton@google.com SpirvShader: Add debug checks on Intermediate.
2019-03-04 chrisforbes@google.com regres: fix wsi test list


Created with:
  gclient setdep -r src/third_party/swiftshader@232c456db8e9

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/127343247,chromium:b/124265819,chromium:b/124265819,chromium:b/126952020,chromium:b/126873455,chromium:b/126873455
TBR=swiftshader-team+autoroll@chromium.org

Change-Id: Id0233ed66f3c5b119c8c343c7da75926b9c21b09
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1500701Reviewed-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@{#637554}

DEPS

@@ -143,7 +143,7 @@ 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': 'bb305299f4de4a87d45bb4197aded36749ebda46',
+  'swiftshader_revision': '232c456db8e9ccfafa80b6ab3eb156e179eee22a',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling PDFium
   # and whatever else without interference from each other.