To ease your policy setup, several policy templates can guide you easily through the configurable options.
Templates can also be generated locally by building the policy_templates Chromium project.
There are two types of templates available, an ADM and an ADMX template. You will want to verify that the template type you can use on your network.
Policy settings can be stored in the registry under HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER in the following paths:
The manifest plist file is in the Google Chrome / Chromium bundle. So if you've already downloaded the package, you can find the plist by:
1. Open the bundle
2. Find the resources folder
3. You will find a file called com.google.Chrome.manifest inside.
To see how to load this file into the Workgroup Manager, see the Mac Quickstart guide.
For Linux, there's a pre-created JSON file contained in ZIP file of ADM/ADMX/JSON templates and documentation that may be copied and edited to taste.
To see where to put this file, see the Linux Quickstart guide.