Make DOMSelection cache Range

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

 /*
  * Copyright (C) 2004, 2008, 2009, 2010 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 1410 matching lines @@
 }
 
 void FrameSelection::setCaretBlinkingSuspended(bool suspended) {
   m_frameCaret->setCaretBlinkingSuspended(suspended);
 }
 
 bool FrameSelection::isCaretBlinkingSuspended() const {
   return m_frameCaret->isCaretBlinkingSuspended();
 }
 
+void FrameSelection::cacheRangeOfDocument(Range* range) {
+  m_selectionEditor->cacheRangeOfDocument(range);
+}
+
+Range* FrameSelection::documentCachedRange() const {
+  return m_selectionEditor->documentCachedRange();
+}
+
+void FrameSelection::clearDocumentCachedRange() {
+  m_selectionEditor->clearDocumentCachedRange();
+}
+
 }  // namespace blink
 
 #ifndef NDEBUG
 
 void showTree(const blink::FrameSelection& sel) {
   sel.showTreeForThis();
 }
 
 void showTree(const blink::FrameSelection* sel) {
   if (sel)
     sel->showTreeForThis();
   else
     LOG(INFO) << "Cannot showTree for <null> FrameSelection.";
 }
 
 #endif