Move rootUserSelectAllForNode() to EditingStrategy template class from PositionAlgorithm template cl

Source/core/editing/Position.cpp

Index: Source/core/editing/Position.cpp
diff --git a/Source/core/editing/Position.cpp b/Source/core/editing/Position.cpp
index 8cb39b2b910b99ef366201e2fc6beda3b017c0b3..6708e109ae17fc5a529f810c9d553c643556f585 100644
--- a/Source/core/editing/Position.cpp
+++ b/Source/core/editing/Position.cpp
@@ -549,29 +549,6 @@ bool hasRenderedNonAnonymousDescendantsWithHeight(LayoutObject* layoutObject)
 }
 
 template <typename Strategy>
-Node* PositionAlgorithm<Strategy>::rootUserSelectAllForNode(Node* node)
-{
-    if (!node || !nodeIsUserSelectAll(node))
-        return 0;
-    Node* parent = Strategy::parent(*node);
-    if (!parent)
-        return node;
-
-    Node* candidateRoot = node;
-    while (parent) {
-        if (!parent->layoutObject()) {
-            parent = Strategy::parent(*parent);
-            continue;
-        }
-        if (!nodeIsUserSelectAll(parent))
-            break;
-        candidateRoot = parent;
-        parent = Strategy::parent(*candidateRoot);
-    }
-    return candidateRoot;
-}
-
-template <typename Strategy>
 bool PositionAlgorithm<Strategy>::isCandidate() const
 {
     if (isNull())