GitLab

This change prepares //net/proxy_resolution/win for the switch of
base::string16 to std::u16string.

Bug: 911896
Change-Id: If58c61761969fa355bea533d87b70e393951c7c9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2642146
Commit-Queue: Jan Wilken Dörrie <jdoerrie@chromium.org>
Reviewed-by: Matt Menke <mmenke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#845647}