Roll clang 303910:305281.

BUG=731130

Review-Url: https://codereview.chromium.org/2941553002
Cr-Original-Commit-Position: refs/heads/master@{#479214}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 3a26e05c70e63815c7c18284e5e006b9d0ac75af
1 file changed