Expand FrameSelection/SelectionEditor::firstRange()

third_party/WebKit/Source/core/editing/SelectionEditor.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 330 matching lines @@
     didFinishDOMMutation();
     return;
   }
   const Position& newBase =
       updatePostionAfterAdoptingTextNodeSplit(m_selection.m_base, oldNode);
   const Position& newExtent =
       updatePostionAfterAdoptingTextNodeSplit(m_selection.m_extent, oldNode);
   didFinishTextChange(newBase, newExtent);
 }
 
-Range* SelectionEditor::firstRange() const {
-  return createRange(firstEphemeralRangeOf(computeVisibleSelectionInDOMTree()));
-}
-
 bool SelectionEditor::shouldAlwaysUseDirectionalSelection() const {
   return frame()->editor().behavior().shouldConsiderSelectionAsDirectional();
 }
 
 bool SelectionEditor::needsUpdateVisibleSelection() const {
   return m_cacheIsDirty || m_styleVersion != document().styleVersion();
 }
 
 void SelectionEditor::updateCachedVisibleSelectionIfNeeded() const {
   // Note: Since we |FrameCaret::updateApperance()| is called from
@@ skipping 38 matching lines @@
 DEFINE_TRACE(SelectionEditor) {
   visitor->trace(m_frame);
   visitor->trace(m_selection);
   visitor->trace(m_cachedVisibleSelectionInDOMTree);
   visitor->trace(m_cachedVisibleSelectionInFlatTree);
   visitor->trace(m_cachedRange);
   SynchronousMutationObserver::trace(visitor);
 }
 
 }  // namespace blink