Prepare SVGDocumentExtensions::m_elementDependencies for oilpan

Source/core/svg/SVGElement.cpp

Index: Source/core/svg/SVGElement.cpp
diff --git a/Source/core/svg/SVGElement.cpp b/Source/core/svg/SVGElement.cpp
index 7b84ce2671c2a15a0a07e0219a01a881266e0b29..9d24a7c4072f042dadac6f4ab7e4920dc934fbfc 100644
--- a/Source/core/svg/SVGElement.cpp
+++ b/Source/core/svg/SVGElement.cpp
@@ -100,9 +100,12 @@ SVGElement::~SVGElement()
         m_SVGRareData.clear();
     }
 
+    // FIXME: Oilpan: Some of the rebuild callbacks are still required in oilpan.
+    // We need to convert all of them to weak processing.
+    document().accessSVGExtensions().rebuildAllElementReferencesForTarget(this);
+
     // With Oilpan, either removedFrom has been called or the document is dead
     // as well and there is no reason to clear out the extensions.
-    document().accessSVGExtensions().rebuildAllElementReferencesForTarget(this);
     document().accessSVGExtensions().removeAllElementReferencesForTarget(this);
 #endif
 }