Fix bridging leaks
Fix bridging leaks

Summary: Follow CF ownership conventions

Reviewed By: lawrencelomax

Differential Revision: D6652562

fbshipit-source-id: 2f8a3f8f2d2d6bae4a60d9b7f6740bccaa9850db

facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl