This CL introduces a SkyShell.apk that is separate from the SkyDemo.apk that we
upload to the store to show our demos. The SkyShell.apk is just an empty shell
that can run Sky applications on Android.
- Add missing dependencies caught by gn's new stricter checker
- Update opentype code to use new OTS API. This code is updated from HEAD
Blink.
- Add base dependency to wtf to avoid redefining marcos from base/macros.h
- Update callers of various base string utility functions to use base
namespace.
