Move Node::lengthOfContents into Range, its only user.

third_party/WebKit/Source/core/dom/Node.cpp

 /*
  * 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, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  *
@@ skipping 2475 matching lines @@
 
 DEFINE_TRACE_WRAPPERS(Node) {
   visitor->traceWrappersWithManualWriteBarrier(m_parentOrShadowHostNode);
   visitor->traceWrappersWithManualWriteBarrier(m_previous);
   visitor->traceWrappersWithManualWriteBarrier(m_next);
   if (hasRareData())
     visitor->traceWrappers(rareData());
   EventTarget::traceWrappers(visitor);
 }
 
-unsigned Node::lengthOfContents() const {
-  // This switch statement must be consistent with that of
-  // Range::processContentsBetweenOffsets.
-  switch (getNodeType()) {
-    case Node::kTextNode:
-    case Node::kCdataSectionNode:
-    case Node::kCommentNode:
-    case Node::kProcessingInstructionNode:
-      return toCharacterData(this)->length();
-    case Node::kElementNode:
-    case Node::kDocumentNode:
-    case Node::kDocumentFragmentNode:
-      return toContainerNode(this)->countChildren();
-    case Node::kAttributeNode:
-    case Node::kDocumentTypeNode:
-      return 0;
-  }
-  NOTREACHED();
-  return 0;
-}
-
 }  // namespace blink
 
 #ifndef NDEBUG
 
 void showNode(const blink::Node* node) {
   if (node)
     LOG(INFO) << *node;
   else
     LOG(INFO) << "Cannot showNode for <null>";
 }
 
 void showTree(const blink::Node* node) {
   if (node)
     LOG(INFO) << "\n" << node->toTreeStringForThis().utf8().data();
   else
     LOG(INFO) << "Cannot showTree for <null>";
 }
 
 void showNodePath(const blink::Node* node) {
   if (node) {
     std::stringstream stream;
     node->printNodePathTo(stream);
     LOG(INFO) << stream.str();
   } else {
     LOG(INFO) << "Cannot showNodePath for <null>";
   }
 }
 
 #endif