chromium/components/policy/resources/templates/policy_definitions/DefaultSearchProvider/policy_atomic_groups.yaml

DefaultSearchProvider:
  caption: Default search provider
  policies:
  - DefaultSearchProviderEnabled
  - DefaultSearchProviderName
  - DefaultSearchProviderKeyword
  - DefaultSearchProviderSearchURL
  - DefaultSearchProviderSuggestURL
  - DefaultSearchProviderInstantURL
  - DefaultSearchProviderIconURL
  - DefaultSearchProviderEncodings
  - DefaultSearchProviderAlternateURLs
  - DefaultSearchProviderSearchTermsReplacementKey
  - DefaultSearchProviderImageURL
  - DefaultSearchProviderNewTabURL
  - DefaultSearchProviderSearchURLPostParams
  - DefaultSearchProviderSuggestURLPostParams
  - DefaultSearchProviderInstantURLPostParams
  - DefaultSearchProviderImageURLPostParams