 
     private var fullWidthURLTextConstraints = [Constraint]()
     private var centeredURLConstraints = [Constraint]()
-    private var hideShieldConstraints = [Constraint]()
     private var hideLockConstraints = [Constraint]()
     private var hideSmallLockConstraints = [Constraint]()
     private var hidePageActionsConstraints = [Constraint]()

        }
        
        urlBarBorderView.snp.makeConstraints { make in
            make.leading.equalTo(shieldIcon.snp.trailing).offset(UIConstants.layout.urlBarMargin)

            make.trailing.equalTo(deleteButton.snp.leading).offset(-UIConstants.layout.urlBarMargin)

            make.height.equalTo(42).priority(.medium)

            self.isEditingConstraints.append(make.height.equalTo(48).priority(.high).constraint)

            make.top.bottom.equalToSuperview().inset(UIConstants.layout.urlBarMargin)
        }

        urlBarBackgroundView.snp.makeConstraints { make in

        UIView.animate(withDuration: duration) {
            if visible {
                self.hidePageActionsConstraints.forEach { $0.deactivate() }
            } else {
                self.hidePageActionsConstraints.forEach { $0.activate() }
            }
            self.layoutIfNeeded()
        }
