UnityEditor.AudioMixerGroupSelector.Cancel C# (CSharp) Method

        private void Cancel()
        {
            if (this.m_SelectionCallback != null)
            {
                this.m_SelectionCallback(this.m_OriginalSelection);
            }
            base.editorWindow.Close();
            GUI.changed = true;
            GUIUtility.ExitGUI();
        }