Let gn_helpers.py handle unicode as str

For some reason, cros_chrome_sdk_unittests passes values as a unicode
object, instead of a str.

BUG=561142

Review URL: https://codereview.chromium.org/1851723002

Cr-Commit-Position: refs/heads/master@{#384839}


CrOS-Libchrome-Original-Commit: 7bf1d0a550d8bb3eea5e3a2a458c27512c3891a5
1 file changed
tree: 8804ca5d4e3f097c5369147580f1f07917b9bf89
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/