Roll SwiftShader e2febff..3e2b109

https://swiftshader.googlesource.com/SwiftShader.git/+log/e2febff..3e2b109

BUG=swiftshader:86

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: If8c59291f627abf8f045a7a72c616e1f822b78da
Reviewed-on: https://chromium-review.googlesource.com/747521Reviewed-by: Alexis Hétu <sugoi@chromium.org>
Commit-Queue: Nicolas Capens <nicolascapens@google.com>
Cr-Commit-Position: refs/heads/master@{#512961}

DEPS

@@ -79,7 +79,7 @@ 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': 'e2febff0f79aab45451c5d20e59e3b55040f2fa6',
+  'swiftshader_revision': '3e2b10936c5304477fdadfa233671738008fe154',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling PDFium
   # and whatever else without interference from each other.