- MTP support for multiple storage units - Add storage_id column to media database for MTP storage ID - Add framework resource for defining mount points and user visible descriptions for multiple volumes - Clean up locking in MtpServer JNI code Change-Id: Ide6d47bd9aa1698ed2a13d695613e03f2a9b29e3 Signed-off-by: Mike Lockwood <lockwood@android.com>