Oilpan: Remove guardRef and guardDeref from TreeScope.

Source/core/dom/Element.cpp

Index: Source/core/dom/Element.cpp
diff --git a/Source/core/dom/Element.cpp b/Source/core/dom/Element.cpp
index 441889f2a9333fa4d77f086554b8cf52d10facf1..bddf8dff35951f9166d5b0aa2d5c05fc56cd4e6b 100644
--- a/Source/core/dom/Element.cpp
+++ b/Source/core/dom/Element.cpp
@@ -178,10 +178,12 @@ Element::~Element()
     if (hasSyntheticAttrChildNodes())
         detachAllAttrNodesFromElement();
 
+#if !ENABLE(OILPAN)
     if (hasPendingResources()) {
         document().accessSVGExtensions().removeElementFromPendingResources(this);
         ASSERT(!hasPendingResources());

[haraken, 2014/04/24 04:18:43]

Shall we have this ASSERT in oilpan builds as well?]

[Mads Ager (chromium), 2014/04/24 10:57:36]

I don't think we can. If this element dies at the same time as the document it
might still be registered as a pending resource with the document. However, that
doesn't matter because the document is also dead and we don't have to clear it
out.

     }
+#endif
 }
 
 inline ElementRareData* Element::elementRareData() const