: mTreeItem(inGroup), mPresContext(inPresContext), mCurrentDropLoc(kNoDropLoc)
: mTreeItem(inTreeItem), mPresContext(inPresContext), mCurrentDropLoc(kNoDropLoc)
  : mTreeItem(inGroup), mPresContext(inPresContext), mCurrentDropLoc(kNoDropLoc){  NS_INIT_REFCNT();    // we really need this all over the place. just be safe that we have it.  NS_ASSERTION ( mPresContext, "no pres context set on tree drag listener" );  NS_ASSERTION ( mTreeItem, "tree item invalid" ); } // nsTreeItemDragCapturer ctor