tree e3751a535cf8442eb6f89b0e4c98bd842cf98428
parent 2f34e59c10c30ea24fa5f4bc4e3d5a9dc6469c34
author Colin Cross <ccross@android.com> 1549485774 -0800
committer Colin Cross <ccross@android.com> 1549490457 +0000

Use OnceKey in art.go

Once is changing to take a type-safe key, use android.NewOnceKey
in art.go.

Test: m checkbuild