See I2291c69d9df17c1a9e4ab1b7d4cbc73bc51d3ebb for the anticipated
hard-deprecation of this method in core.
Bug: T197492
Change-Id: I4687db09c27480147cfa7a648a886b1670812deb
We almost always call it with DB_MASTER, and I'm pretty sure that the
one call that uses DB_REPLICA introduces a race condition. I didn't want
to change that quite yet, though, so I left it in for now.
Change-Id: Ia5a59fdda357b799e327b8ed224f3ccb09509a8a