Bug: angleproject:1951

Change-Id: I19d4218b28770464e4cb38027cce694e2a817b5b
Reviewed-on: https://chromium-review.googlesource.com/c/1269827
Commit-Queue: Jiajia Qin <jiajia.qin@intel.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>