Get the the previously set #WebKitAutomationSession.
Get the #WebKitAutomationSession previously set with webkit.automation_session.AutomationSession.setApplicationInfo.
the #WebKitAutomationSession of session, or null if no one has been set.
Get the the previously set #WebKitAutomationSession.
Get the #WebKitAutomationSession previously set with webkit.automation_session.AutomationSession.setApplicationInfo.