[WebSocket] Add new test confirming 1MB arraybuffer send/receive.

This patch adds send-receive-arraybuffer-1MB.html
since we didn't have any simple test to confirm sending and receiving
long array buffer.

Change-Id: Id6488e3766fb758583747d7c14927cd98ef2791f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1692423
Reviewed-by: Adam Rice <ricea@chromium.org>
Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Commit-Queue: Yoichi Osato <yoichio@chromium.org>
Cr-Commit-Position: refs/heads/master@{#678988}
1 file changed