Daichi Hirono 50d17aa871 Implement queryRoot method of MtpDocumentsProvider.
BUG=20274999

Change-Id: I27aa8bffe47eab6ea1f4195023dbacb6e2f76548
2015-07-29 14:38:11 +09:00
..
2015-07-22 05:41:34 -07:00