chrome/updater proof of concept: link with winhttp

A tiny bit of progress to showcase adding an import lib for winhttp and
a scoped handle class to wrap HINTERNET handles.

Bug: 934115
Change-Id: I8210d66794797b3edfa37f96f210ed534c412e7e
Reviewed-on: https://chromium-review.googlesource.com/c/1480707
Reviewed-by: Joshua Pawlicki <waffles@chromium.org>
Commit-Queue: Sorin Jianu <sorin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#634226}
9 files changed