This problem may result in browsing data not being removed (I'm not entirely sure how this is used) so marking as a P1 in case that's true.

In a debug build I signed into Chrome using my @google.com account. Then I went to settings and logged out (at the top), and accepted the "clear data" prompt.

This asserts in chrome_browsing_data_remover_delegate.cc with an invalid GURL. WebsiteSettingsFilterAdapter has this code:
  // Website settings only use origin-scoped patterns. The only content setting
  // currently supported by ChromeBrowsingDataRemoverDelegate is
  // DURABLE_STORAGE, which also only uses origin-scoped patterns. Such patterns
  // can be directly translated to a GURL.
  GURL url(primary_pattern.ToString());
  DCHECK(url.is_valid());
  return predicate.Run(url);

This comment and the code below are incorrect. In my case, primary_pattern.ToString() is returning the string "ca-service.corp.google.com" which is not a URL. This is because the content setting uses a wildcard scheme. GURL reduces to an empty GURL which is invalid.

I'm assuming data associated with this policy will not be removed as a result.