Bug 332927: Cleanup iframe/frame printing code (and a couple other misc. cleanups)

git-svn-id: svn://10.0.0.236/trunk@194085 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/layout/generic/nsPageContentFrame.cpp

@@ -129,6 +129,8 @@ NS_IMETHODIMP nsPageContentFrame::Reflow(nsPresContext*   aPresContext,
   if (aReflowState.availableHeight != NS_UNCONSTRAINEDSIZE) {
     aDesiredSize.height = aReflowState.availableHeight;
   }
+  aDesiredSize.ascent = aDesiredSize.height;
+  aDesiredSize.descent = 0;
 
   NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
   return NS_OK;