Roll SwiftShader 010a464..426cb5e

https://swiftshader.googlesource.com/SwiftShader.git/+log/010a464..426cb5e

BUG=

TEST=bots

CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel,linux_chromium_cfi_rel_ng;master.tryserver.chromium.android:android_optional_gpu_tests_rel

Change-Id: I673ed6cf468e9e115184a06a57fbba05cbd5e6bd
Reviewed-on: https://chromium-review.googlesource.com/581743Reviewed-by: Alexis Hétu <sugoi@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
Commit-Queue: Alexis Hétu <sugoi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#488753}

DEPS

@@ -60,7 +60,7 @@ 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': '010a464878f32daed863edee3fc6ad21920d605b',
+  'swiftshader_revision': '426cb5e11112c9a9c3a7f145474a29e5e81463ca',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling PDFium
   # and whatever else without interference from each other.