This shows direct drawing to an ANativeWindow's bits.
Update the NDK API, and fix a bug in the native-activity app where it
would hang while exiting.
Change-Id: I4fa98d083405eb0d1b22b10a73a2ef18d45fdb59
The idea is to allow developing the NDK in the open, while
having the platforms and samples under a private branch until
the corresponding release are open-sourced.
Change-Id: Iee995fb6c4d3ee1387dea7486e599e079c9e4c6d