Oilpan: fix build after r193519.

Source/core/dom/Position.h

 /*
  * Copyright (C) 2004, 2006, 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 13 matching lines @@
  */
 
 #ifndef Position_h
 #define Position_h
 
 #include "core/CoreExport.h"
 #include "core/dom/ContainerNode.h"
 #include "core/editing/EditingBoundary.h"
 #include "core/editing/EditingStrategy.h"
 #include "core/editing/TextAffinity.h"
+#include "platform/heap/Handle.h"
 #include "platform/text/TextDirection.h"
 #include "wtf/Assertions.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class CSSComputedStyleDeclaration;
 class Element;
 class InlineBox;
@@ skipping 181 matching lines @@
     static PositionType lastPositionInOrAfterNode(Node* anchorNode);
 
     void debugPosition(const char* msg = "") const;
 
 #ifndef NDEBUG
     void formatForDebugger(char* buffer, unsigned length) const;
     void showAnchorTypeAndOffset() const;
     void showTreeForThis() const;
 #endif
 
+    DEFINE_INLINE_TRACE()
+    {
+        visitor->trace(m_anchorNode);
+    }
+
 protected:
     PositionAlgorithm(const PositionAlgorithm&);
 
     int offsetForPositionAfterAnchor() const;
 
     int renderedOffset() const;
 
     static AnchorType anchorTypeForLegacyEditingPosition(Node* anchorNode, int offset);
 
     RefPtrWillBeMember<Node> m_anchorNode;
@@ skipping 22 matching lines @@
     Position(PassRefPtrWillBeRawPtr<Node> anchorNode, AnchorType);
     Position(PassRefPtrWillBeRawPtr<Text> textNode, unsigned offset);
 
     // For creating offset positions:
     // FIXME: This constructor should eventually go away. See bug 63040.
     Position(PassRefPtrWillBeRawPtr<Node> anchorNode, int offset, AnchorType);
     explicit Position(const PositionAlgorithm&);
 
     int compareTo(const Position&) const;
 
-    DECLARE_TRACE();
-
 #ifndef NDEBUG
     Node* nodeAsSelectionStart() const;
     Node* nodeAsSelectionEnd() const;
     bool equivalentTo(const Position&) const;
     Position toPositionForEquality() const;
 #endif
 };
 
 template <typename Strategy>
 typename Strategy::PositionType PositionAlgorithm<Strategy>::createLegacyEditingPosition(PassRefPtrWillBeRawPtr<Node> node, int offset)
@@ skipping 171 matching lines @@
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const blink::Position&);
 void showTree(const blink::Position*);
 #endif
 
 #endif // Position_h