Steps to reproduce the problem:
1. Issue a privet local printing job from Android 6.0.0 with Cloud Print 1.33b
2. Document name is blank on receiving system
3. 

What is the expected behavior?
Document name is populated correctly.

What went wrong?
AndroidOS will issue this print job request:

POST /privet/printer/submitdoc?client=android-app HTTP/1.1

while ChromeOS will issue this print job request:

POST /privet/printer/submitdoc?client_name=Chrome&job_name=Test+Job HTTP/1.1

The GCP specification does not provide for a "client" parameter, but "client_name" instead.  Although all of the specified parameters are optional for /privet/printer/submitdoc, the spec "HIGHLY" recommends that clients provide a valid user name, client name and job name for a good user experience.

Did this work before? No 

Chrome version: 51.0.2704.81  Channel: stable
OS Version: 6.0.0; XT1064 Build/MPB24.65-34
Flash Version: Shockwave Flash 22.0 r0

Not sure if I input this bug report correctly.  It is intended for Cloud Print on AndroidOS.