GitLab

This CL implements https://fetch.spec.whatwg.org/#body-mixin:
"""
Request includes Body;

The body attribute’s getter must return null if body is null and body’s stream otherwise.
"""
Since this feature is required for fetch upload streaming, this CL makes
it under the flag FetchUploadStreaming.

Fixed: 1105704
Change-Id: I334d9e1a3494ff4ba31efc9dc8b319294d2e19d4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2297035Reviewed-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@{#789852}