When DISALLOW_MOUNT_PHYSICAL_MEDIA is true, prevent user from mounting any external media. When DISALLOW_USB_FILE_TRANSFER is true, prevent user from enabling USB mass storage. Change-Id: Ia4accec4fb0b7aad6350cf0059244f6329204796
When DISALLOW_MOUNT_PHYSICAL_MEDIA is true, prevent user from mounting any external media. When DISALLOW_USB_FILE_TRANSFER is true, prevent user from enabling USB mass storage. Change-Id: Ia4accec4fb0b7aad6350cf0059244f6329204796