I happened to test something on API 19 today, which is the first API level where Activity.reportFullyDrawn was supported. I ended up with a stack trace saying I didn't have android.permissions.UPDATE_DEVICE_STATS. This is documented as not being for use by third party apps. Adding it to my manifest made the crash go away.

We may want to either remove the reportFullyDrawn line and just let users do it when they think it's right, or raise the API level to something safer.

/cc @matthew-carroll @xster