Out-of-line trace() methods of editing template types.

third_party/WebKit/Source/core/editing/Position.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2009 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 33 matching lines @@
 }
 
 template <>
 bool canBeAnchorNode<EditingInFlatTreeStrategy>(Node* node) {
   return canBeAnchorNode<EditingStrategy>(node) &&
          node->canParticipateInFlatTree();
 }
 #endif
 
 template <typename Strategy>
+DEFINE_TRACE(PositionTemplate<Strategy>) {
+  visitor->trace(m_anchorNode);
+}
+
+template <typename Strategy>
 const TreeScope* PositionTemplate<Strategy>::commonAncestorTreeScope(
     const PositionTemplate<Strategy>& a,
     const PositionTemplate<Strategy>& b) {
   if (!a.computeContainerNode() || !b.computeContainerNode())
     return nullptr;
   return a.computeContainerNode()->treeScope().commonAncestorTreeScope(
       b.computeContainerNode()->treeScope());
 }
 
 template <typename Strategy>
@@ skipping 608 matching lines @@
 }
 
 void showTree(const blink::Position* pos) {
   if (pos)
     pos->showTreeForThis();
   else
     LOG(INFO) << "Cannot showTree for <null>";
 }
 
 #endif