Get rid of unused functions SelectionAdjuster::adjustSelectionIn{DOM,Flat}Tree

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SelectionAdjuster_h
 #define SelectionAdjuster_h
 
 #include "core/editing/VisibleSelection.h"
 #include "wtf/Allocator.h"
 
 namespace blink {
 
 // |SelectionAdjuster| adjusts positions in |VisibleSelection| directly without
 // calling |validate()|. Users of |SelectionAdjuster| should keep invariant of
 // |VisibleSelection|, e.g. all positions are canonicalized.
 class CORE_EXPORT SelectionAdjuster final {
   STATIC_ONLY(SelectionAdjuster);
 
  public:
-  static void adjustSelectionInFlatTree(VisibleSelectionInFlatTree*,
-                                        const VisibleSelection&);
-  static void adjustSelectionInDOMTree(VisibleSelection*,
-                                       const VisibleSelectionInFlatTree&);
   static void adjustSelectionToAvoidCrossingShadowBoundaries(VisibleSelection*);
   static void adjustSelectionToAvoidCrossingShadowBoundaries(
       VisibleSelectionInFlatTree*);
 };
 
 }  // namespace blink
 
 #endif  // SelectionAdjuster_h