am 6ed1c0d9: am 7b6865e9: (-s ours) am d26ad41b: DO NOT MERGE: Prevent integer wrap around for malloc size when creating a SkRegion

* commit '6ed1c0d9947636a403319b4d386354de0c0738c5':
  DO NOT MERGE: Prevent integer wrap around for malloc size when creating a SkRegion