ExitReflowLock(PR_TRUE);
DidCauseReflow();
PresShell::ContentRemoved(nsIDocument *aDocument,                          nsIContent* aContainer,                          nsIContent* aChild,                          PRInt32     aIndexInContainer){  EnterReflowLock();  nsresult  rv = mStyleSet->ContentRemoved(mPresContext, aContainer,                                           aChild, aIndexInContainer);  VERIFY_STYLE_TREE;  ExitReflowLock(PR_TRUE);  return rv;}