if (mDebugInner) { mDebugInner->RemoveListener(); NS_RELEASE(mDebugInner); mDebugInner = nsnull; }
delete mDebugInner;
  ~nsBoxFrameInner()  {      if (mDebugInner) {          mDebugInner->RemoveListener();          NS_RELEASE(mDebugInner);          mDebugInner = nsnull;      }      delete mInfoList;  }