Get rid of redundant member variable SelectionEditor::m_logicalRange

third_party/WebKit/Source/core/editing/SelectionEditor.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 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
@@ skipping 49 matching lines @@
   void setSelection(const SelectionInDOMTree&);
 
   void documentAttached(Document*);
 
   // If this FrameSelection has a logical range which is still valid, this
   // function return its clone. Otherwise, the return value from underlying
   // |VisibleSelection|'s |firstRange()| is returned.
   Range* firstRange() const;
 
   // There functions are exposed for |FrameSelection|.
-  void resetLogicalRange();
-  void setLogicalRange(Range*);
-
   void cacheRangeOfDocument(Range*);
   Range* documentCachedRange() const;
   void clearDocumentCachedRange();
 
   DECLARE_TRACE();
 
  private:
   explicit SelectionEditor(LocalFrame&);
 
   Document& document() const;
@@ skipping 22 matching lines @@
                               unsigned offset,
                               unsigned oldLength,
                               unsigned newLength) final;
   void nodeChildrenWillBeRemoved(ContainerNode&) final;
   void nodeWillBeRemoved(Node&) final;
 
   Member<LocalFrame> m_frame;
 
   SelectionInDOMTree m_selection;
 
-  // TODO(editing-dev): Removing |m_logicalRange|
-  // The range specified by the user, which may not be visually canonicalized
-  // (hence "logical"). This will be invalidated if the underlying
-  // |VisibleSelection| changes. If that happens, this variable will
-  // become |nullptr|, in which case logical positions == visible positions.
-  Member<Range> m_logicalRange;
-
   // If document is root, document.getSelection().addRange(range) is cached on
   // this.
   Member<Range> m_cachedRange;
 
   mutable VisibleSelection m_cachedVisibleSelectionInDOMTree;
   mutable VisibleSelectionInFlatTree m_cachedVisibleSelectionInFlatTree;
   mutable uint64_t m_styleVersion = static_cast<uint64_t>(-1);
   mutable bool m_cacheIsDirty = false;
 };
 
 }  // namespace blink
 
 #endif  // SelectionEditor_h