Fix GN bootstrap

TBR=brettw

BUG=none

Review-Url: https://codereview.chromium.org/2913973002 .
Cr-Original-Commit-Position: refs/heads/master@{#475873}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: e329e9ec19db0e940a4f7a8959a7a40b692413d4
1 file changed
tree: 43ad111ecaeea87076d4761c1ae3a8881139443e
  1. tools/