GitLab

Make sendBeacon() throw when the supplied body is a ReadableStream
object, for alignment with the standard.

BUG=973659

Change-Id: I0efce29d3857a3e2cd125e3210cc6646095fa4cd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2029476Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Commit-Queue: Adam Rice <ricea@chromium.org>
Cr-Commit-Position: refs/heads/master@{#738848}