For anyone interested! (chocolatey package)

[Journeyover]

--make-chrome-default
With this command line, the installer will make the browser as default browser after installation completed.

The installer will create shortcuts on desktop/startmenu/taskbar by default. If you want to disable it, you can use the following command lines.
--do-not-create-desktop-shortcut
--do-not-create-taskbar-shortcut
--do-not-create-startmenu-shortcut

what about making it not the default browser? or is the default install option during silent install not making centbrowser the default browser?

and I will get the three for the desktop/startmenu/taskbar in as params now as well as options that you can pass in, there won't be a default for these three but I'll have a switch that will add them to the silent install arg if the calls for them are present in the command line.

Edit:

Have now added the three options for no desktop/startmenu/taskbar icons.

You'll pass them in as just like the above options but using 

Code:

/NoDesktopIcon

Code:

/NoTaskbarIcon

Code:

/NoStartmenuIcon

instead, and if any of them are present in the command then it'll add the correct string to the silent install arg.