Initialize the package in Chrome OS First commit in Chrome OS, do the following things, 1. Add BUILD.gn. 2. Modify some source code to avoid "-Wunreachable-code-return" error. 3. Add LICENSE and OWNERS file. BUG=1086044 TEST=Can compile. And the lang-id works based on it. Exempt-From-Owner-Approval: The existing OWNER is from AOSP. Change-Id: Ie0531221fac4648540b9d56cb7c91e5756da7706 Reviewed-on: https://chromium-review.googlesource.com/c/aosp/platform/external/libutf/+/2248286 Tested-by: Honglin Yu <[email protected]> Commit-Queue: Honglin Yu <[email protected]> Reviewed-by: Mike Frysinger <[email protected]>