Bug 284950: DeCOMTaminate nsIContent::GetAttrNameAt

r/sr=bz


git-svn-id: svn://10.0.0.236/trunk@186678 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/layout/mathml/base/src/nsMathMLContainerFrame.cpp

@@ -63,6 +63,7 @@
 #include "nsMathMLContainerFrame.h"
 #include "nsAutoPtr.h"
 #include "nsStyleSet.h"
+#include "nsCSSFrameConstructor.h"
 
 NS_DEFINE_CID(kInlineFrameCID, NS_INLINE_FRAME_CID);
 
@@ -987,7 +988,10 @@ nsMathMLContainerFrame::RemoveFrame(nsIAtom*        aListName,
     return NS_ERROR_INVALID_ARG;
   }
   // remove the child frame
-  mFrames.DestroyFrame(GetPresContext(), aOldFrame);
+  nsPresContext* presContext = GetPresContext();
+  presContext->PresShell()->FrameConstructor()->
+    RemoveMappingsForFrameSubtree(aOldFrame);
+  mFrames.DestroyFrame(presContext, aOldFrame);
   return ChildListChanged(nsIDOMMutationEvent::REMOVAL);
 }