const nsMargin& BorderPadding() const { return mReflowState.mComputedBorderPadding;
nsMargin BorderPadding() const { nsMargin result = mReflowState.mComputedBorderPadding; if (!(mFlags & BRS_ISFIRSTINFLOW)) { result.top = 0; } return result;
  const nsMargin& BorderPadding() const {    return mReflowState.mComputedBorderPadding;  }