 
 private extension MultiAuthService {
     
-    func configuredActivityViewController(URLString: String, sender: AnyObject, handler: (username: String?, password: String?, errorMessage: String?) -> ()) -> UIActivityViewController {
-        let item = [MultiAuthService.URLStringKey: URLString]
-        let itemProvider = NSItemProvider(item: item, typeIdentifier: MultiAuthService.findLoginAction)
-        let extensionItem = NSExtensionItem()
-        extensionItem.attachments = [itemProvider]
-        let keychainActivity = KeychainActivity()
-        keychainActivity.handler = handler
-        let activityViewController = UIActivityViewController(activityItems: [extensionItem], applicationActivities: [keychainActivity])
-        if let barButtonItem = sender as? UIBarButtonItem {
-            activityViewController.popoverPresentationController?.barButtonItem = barButtonItem
-        } else if let senderView = sender as? UIView {
-            activityViewController.popoverPresentationController?.sourceView = senderView.superview
-            activityViewController.popoverPresentationController?.sourceRect = senderView.frame
-        }
-        return activityViewController
-    }
-    
     static func didRecordLogInViaSharedCredentials() -> Bool {
         return NSUserDefaults.standardUserDefaults().boolForKey(logInViaSharedCredentialsKey)
     }

    
    // MARK: - Private constants
    
    private static let usernameKey = "username"
    private static let passwordKey = "password"
    private static let logInViaSharedCredentialsKey = "MultiAuth.logInViaSharedCredentials"
    
    
    // MARK: - Private properties
    
    private let serverURLString: String
    
    
    // MARK: - Initializer

    // MARK: - Public API
        
    public func retrieveCredentialsFromActivityViewController(urlString: String, fromViewController viewController: UIViewController, sender: AnyObject, storedHandler: (username: String?, password: String?, errorMessage: String?) -> ()) {
        let keychainActivity = KeychainActivity()
        keychainActivity.handler = storedHandler
        
        onePasswordExtension.findLoginForURLString(urlString, forViewController: viewController, sender: sender, applicationActivities: [keychainActivity]) { loginDictionary, error in
            if let loginDictionary = loginDictionary where error == nil {
                let username = loginDictionary[AppExtensionUsernameKey] as? String
                let password = loginDictionary[AppExtensionPasswordKey] as? String
                storedHandler(username: username, password: password, errorMessage: nil)
            } else {
                storedHandler(username: nil, password: nil, errorMessage: error?.localizedDescription)
            }
        }
    }
    
    public func saveSharedCredentials(username username: String, password: String) {
