Bug 372237. Make DoDeletingFrameSubtree skip overflowOutOfFlow child lists since they contain out-of-flow frames. r+sr=dbaron

layout/base/nsCSSFrameConstructor.cpp

@@ -9317,6 +9317,7 @@ DoDeletingFrameSubtree(nsFrameManager* aFrameManager,
       childListName = aFrame->GetAdditionalChildListName(childListIndex++);
     } while (childListName == nsGkAtoms::floatList    ||
              childListName == nsGkAtoms::absoluteList ||
+             childListName == nsGkAtoms::overflowOutOfFlowList ||
              childListName == nsGkAtoms::fixedList);
   } while (childListName);