Get object size that is more than 4GB.

MtpObjectInfo contains object size as 32-bit integer and the provider
needs to invoke MtpDevice#getObjectSizeLong hidden API to get 64-bit
object size.

The CL switches to use MtpDevice#getObjectSizeLong hidden API if
MtpObjectInfo#getCompressedSize() returns 0xffffffffL, which means the
object size is more than 4GB.

BUG=27805369

Change-Id: I87ea02c09aa784246cf016def309d1f39ed20e90