spaceManager = aSpaceManager; lineLayout = nsnull;
NS_PRECONDITION(nsnull != aRenderingContext, "no rendering context"); parentReflowState = nsnull; frame = aFrame; reason = aReason; path = nsnull; availableWidth = aAvailableSpace.width; availableHeight = aAvailableSpace.height; rendContext = aRenderingContext; mSpaceManager = nsnull; mLineLayout = nsnull; mFlags.mSpecialHeightReflow = PR_FALSE; mFlags.mIsTopOfPage = PR_FALSE; mFlags.mUnused = 0; mPercentHeightObserver = nsnull; mPercentHeightReflowInitiator = nsnull;
nsHTMLReflowState::nsHTMLReflowState(nsIPresContext&      aPresContext,                                     nsIFrame*            aFrame,                                     nsReflowReason       aReason,                                      const nsSize&        aMaxSize,                                     nsIRenderingContext* aContext,                                     nsISpaceManager*     aSpaceManager)  : nsReflowState(aFrame, aReason, aMaxSize, aContext){  spaceManager = aSpaceManager;  lineLayout = nsnull;  Init(aPresContext);}