[Sheriff] Ignore failing WPT target_blank_implicit_noopener.html

Updated WPT state from roll has different failures and passes from
previous expectations

TBR=foolip

Bug: 930873
Change-Id: I2a5bb4a5c30225b1970c165b5b6e92fb7c9159a0
Reviewed-on: https://chromium-review.googlesource.com/c/1465059
Reviewed-by: Peter Mayo <petermayo@chromium.org>
Reviewed-by: Katie Dektar <katie@chromium.org>
Reviewed-by: Philip J├Ągenstedt <foolip@chromium.org>
Commit-Queue: Peter Mayo <petermayo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#631005}
1 file changed