GN: Fix bootstrap call to setup_toolchain

The parameters to setup_toolchain changed, adding an OS parameter and a
filename for the environment file.

Additional fixes:
- Add missing base file to list of files
- vs_toolchain should output Windows paths properly escaped

Change-Id: I0e05bf34c8b603f16b901e76164e480121ed9d14
Reviewed-on: https://chromium-review.googlesource.com/1013926
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Yngve Pettersen <yngve@vivaldi.com>
Cr-Commit-Position: refs/heads/master@{#551341}

CrOS-Libchrome-Original-Commit: 95fe44b3c31cf5e1a668d9ef8853aaf2cf9523a5
1 file changed
tree: 83a0d9079868587e86b66aa0efa7b05ea721bdc7
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/