am: 199cb4dfe5
* commit '199cb4dfe58bd5a4198cd414dcefd2b02d48548d':
Clarify synchronization between PrintActivity and RemotePrintDocument
am: 199cb4dfe5
* commit '199cb4dfe58bd5a4198cd414dcefd2b02d48548d':
Clarify synchronization between PrintActivity and RemotePrintDocument