PhysicalWebEnvironment function ( ChromeApplication arg0 ) { synchronized ( INSTANCE_LOCK ) { if ( sInstance == null ) { sInstance = arg0 . createPhysicalWebEnvironment ( ) ; } } return sInstance ; }
get a singleton instance of this class . concode_field_sep PhysicalWebEnvironment sInstance concode_elem_sep Object INSTANCE_LOCK concode_field_sep boolean hasNotificationBasedClient