am 21abce44: am f7d70b78: (-s ours) am 60ed36df: Revert "DO NOT MERGE: Prevent integer wrap around for malloc size when creating a SkRegion"

* commit '21abce44194648ee0e1f9bdc2b5e68aa2a87545e':
  Revert "DO NOT MERGE: Prevent integer wrap around for malloc size when creating a SkRegion"