tree 30601060ab42976b1a32802af80fa5e0297e10f4
parent db338c2e907acb8a93d0519940a1c21125f6db1b
author Daichi Hirono <hirono@google.com> 1455219647 -0800
committer Daichi Hirono <hirono@google.com> 1455223299 -0800

Returns "application/octet-stream" for unknown types of MTP files.

According to DocumentsContract mime type field is required.
MtpDocumentsProvider should returns mime type for unknown types of MTP
files as well.

BUG=27148801

Change-Id: I7e4b832f6c00f438cf90190c074f204fdedceef5