Minor Fixes for Windows GN build.

TBR=scottmg

Review URL: https://codereview.chromium.org/335973002

Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 886323cb9f3d028be14ddd92a9c7f40a4bac21dc
1 file changed