private void SetChildParentOfMixerItem(AudioMixerItem item, List <AudioMixerItem> items)
 {
     if (item.mixer.outputAudioMixerGroup != null)
     {
         AudioMixerItem item2 = TreeViewUtility.FindItemInList <AudioMixerItem>(item.mixer.outputAudioMixerGroup.audioMixer.GetInstanceID(), items) as AudioMixerItem;
         if (item2 != null)
         {
             item2.AddChild(item);
         }
     }
     else
     {
         base.m_RootItem.AddChild(item);
     }
 }
 private void SetChildParentOfMixerItem(AudioMixerItem item, List <AudioMixerItem> items)
 {
     if ((UnityEngine.Object)item.mixer.outputAudioMixerGroup != (UnityEngine.Object)null)
     {
         AudioMixerItem itemInList = TreeViewUtility.FindItemInList <AudioMixerItem>(item.mixer.outputAudioMixerGroup.audioMixer.GetInstanceID(), items) as AudioMixerItem;
         if (itemInList == null)
         {
             return;
         }
         itemInList.AddChild((TreeViewItem)item);
     }
     else
     {
         this.m_RootItem.AddChild((TreeViewItem)item);
     }
 }