Do not use alert in wpt
Using alert in tests causes harness error. Changed that to "console.log"
fixed the test for both headless shell and Chrome.
Bug: None
Change-Id: Id113c96ea470e6ccf1f0ada69d87c3a20364b5d4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5942099
Commit-Queue: Weizhong Xia weizhong@google.com
Reviewed-by: Antonio Sartori antoniosartori@chromium.org
Cr-Commit-Position: refs/heads/main@{#1371440}