Remove DanglingUntriaged annotation from HttpRequestInfo.

Two test fixtures were destroying an UploadDataStream before they
destroyed the HttpRequestInfo that uses it.  This CL fixes those
consumers.

Bug: 40212619
Change-Id: I42ccc54784810e4620013c6754b1e86ea23248af
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5405939


Commit-Queue: mmenke <mmenke@chromium.org>
Reviewed-by: Kenichi Ishibashi <bashi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1280485}