Log blocking Binder calls to the EventLog.

This mimics what we do already for SQLiteDatabase's db_operation and
ContentProvider's content_query_operation and
content_update_operation:  over a threshold things are always logged,
and under which they're sub-sampled.

Change-Id: Ia0280b9b07b336ee88b17be2a31a7af0fd7c5770
2 files changed