Bug 377391: Parts of a rectangle with CSS outline remains, when changing rectangle size. r+sr=roc

layout/generic/nsBlockFrame.cpp

@@ -1120,11 +1120,11 @@ nsBlockFrame::Reflow(nsPresContext*          aPresContext,
     aMetrics.mOverflowArea.UnionRect(aMetrics.mOverflowArea, childBounds);
   }
 
-  FinishAndStoreOverflow(&aMetrics);
-
   // Determine if we need to repaint our border, background or outline
   CheckInvalidateSizeChange(aPresContext, aMetrics, aReflowState);
 
+  FinishAndStoreOverflow(&aMetrics);
+
   // Clear the space manager pointer in the block reflow state so we
   // don't waste time translating the coordinate system back on a dead
   // space manager.