Fix the output of "gn args" for the OS and CPU architecture.

The internal declarations of these weren't getting set correctly. This only affects the output of "gn args".

BUG=
R=thakis@chromium.org

Review URL: https://codereview.chromium.org/40533003

Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: dbd915b46e952364ad911640fef194b6f36076f9
2 files changed
tree: 952122b22d2be1507a321fed1aae11f50bcb0336
  1. tools/