Remove some unused methods from Node and ContainerNode.

sky/engine/core/dom/Node.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004-2011, 2014 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 131 matching lines @@
 
     virtual ~Node();
 
     // DOM methods & attributes for Node
 
     bool hasTagName(const HTMLQualifiedName&) const;
     virtual String nodeName() const = 0;
     virtual NodeType nodeType() const = 0;
     ContainerNode* parentNode() const;
     Element* parentElement() const;
-    ContainerNode* parentElementOrShadowRoot() const;
-    ContainerNode* parentElementOrDocumentFragment() const;
     Node* previousSibling() const { return m_previous; }
     Node* nextSibling() const { return m_next; }
     Node* firstChild() const;
     Node* lastChild() const;
 
     void remove(ExceptionState&);
 
     // These should all actually return a node, but this is only important for language bindings,
     // which will already know and hold a ref on the right node to return.
     PassRefPtr<Node> insertBefore(PassRefPtr<Node> newChild, Node* refChild, ExceptionState& = ASSERT_NO_EXCEPTION);
@@ skipping 563 matching lines @@
 
     detach(context);
     markAncestorsWithChildNeedsStyleRecalc();
 }
 
 inline bool Node::shouldCallRecalcStyle(StyleRecalcChange change)
 {
     return change >= Inherit || needsStyleRecalc() || childNeedsStyleRecalc();
 }
 
-inline bool isTreeScopeRoot(const Node* node)
-{
-    return !node || node->isDocumentNode() || node->isShadowRoot();
-}
-
-inline bool isTreeScopeRoot(const Node& node)
-{
-    return node.isDocumentNode() || node.isShadowRoot();
-}
-
 // Allow equality comparisons of Nodes by reference or pointer, interchangeably.
 DEFINE_COMPARISON_OPERATORS_WITH_REFERENCES_REFCOUNTED(Node)
 
 
 #define DEFINE_NODE_TYPE_CASTS(thisType, predicate) \
     template<typename T> inline thisType* to##thisType(const RefPtr<T>& node) { return to##thisType(node.get()); } \
     DEFINE_TYPE_CASTS(thisType, Node, node, node->predicate, node.predicate)
 
 // This requires isClassName(const Node&).
 #define DEFINE_NODE_TYPE_CASTS_WITH_FUNCTION(thisType) \
@@ skipping 11 matching lines @@
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showNode(const blink::Node*);
 void showTree(const blink::Node*);
 void showNodePath(const blink::Node*);
 #endif
 
 #endif // Node_h