Fix fetch/api/request/request-keepalive-quota failures on Windows

We need to read request's body before closing the connection, otherwise
Chrome thinks the connection is reset abruptly.

Bug: 695939
Change-Id: I27a92003138a8791e1d9bd7622d79ce795d7a1bd
Reviewed-on: https://chromium-review.googlesource.com/844035
Reviewed-by: Hiroshige Hayashizaki <hiroshige@chromium.org>
Commit-Queue: Yutaka Hirano <yhirano@chromium.org>
Cr-Commit-Position: refs/heads/master@{#526209}
2 files changed