Merge "Merge "Add interface IDriveHelper for Google Drive app" am: 1c5a9b1f30 am: bfd485d2a3 am: 736276ddc3 am: 20a98d47f7" into qt-dev am: bfc77ed8 am: 9b6ad970 Change-Id: Ia73b37536ec47a22b52980b3d105f39c4cf3e69d