sendSocial method
Sends a Social hit to Google Analytics.
network
specifies the social network, for example Facebook or Google
Plus. action
specifies the social interaction action. For example on
Google Plus when a user clicks the +1 button, the social action is 'plus'.
target
specifies the target of a
social interaction. This value is typically a URL but can be any text.
Implementation
@override
Future sendSocial(String network, String action, String target) =>
_log('social', {'network': network, 'action': action, 'target': target});