This transition type means the user followed a link.
This transition type means that the user typed the page's URL in the URL bar or selected it from UI (URL bar autocomplete results, etc)
Internal visit type used for meta data updates. Doesn't represent an actual page visit
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
Returns an array containing the constants of this enum type, in the order they're declared.