Name mapping between Chrome policies and Chrome experimental options in Selenium python

Question

I would like to set some Chrome policies listed here using Selenium . My problem here is that I don't know how to map the Chromium policy names to the preference names to pass to the Chrome driver in Selenium.

Based on this question , the policy SafeBrowsingEnabled becomes:

from selenium.webdriver.chrome.options import Options as ChromeOptions

chrome_options = ChromeOptions()
chrome_options.add_experimental_option(
    'prefs', {
        'safebrowsing.enabled': 'false'
    }
)

Based on this question , the policy DownloadRestrictions becomes:

from selenium.webdriver.chrome.options import Options as ChromeOptions

chrome_options = ChromeOptions()
chrome_options.add_experimental_option(
    'prefs', {
        'download_restrictions': 3
    }
)

Based on this question , the policy DefaultDownloadDirectory becomes:

from selenium.webdriver.chrome.options import Options as ChromeOptions

chrome_options = ChromeOptions()
chrome_options.add_experimental_option(
    'prefs', {
        'download.default_directory': '/path/to/folder',
    }
)

But where are these mappings coming from? I was unable to find any documentation about this.

Answer 1

I believe the available prefs are here: https://source.chromium.org/chromium/chromium/src/+/main:chrome/common/pref_names.cc