findFirstGrammarDetail doesn't need to be exposed

Source/core/editing/TextCheckingHelper.h

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 65 matching lines @@
 
 class TextCheckingHelper {
     WTF_MAKE_NONCOPYABLE(TextCheckingHelper);
 public:
     TextCheckingHelper(EditorClient*, PassRefPtr<Range>);
     ~TextCheckingHelper();
 
     String findFirstMisspelling(int& firstMisspellingOffset, bool markAll, RefPtr<Range>& firstMisspellingRange);
     String findFirstMisspellingOrBadGrammar(bool checkGrammar, bool& outIsSpelling, int& outFirstFoundOffset, GrammarDetail& outGrammarDetail);
     String findFirstBadGrammar(GrammarDetail& outGrammarDetail, int& outGrammarPhraseOffset, bool markAll);
-    int findFirstGrammarDetail(const Vector<GrammarDetail>& grammarDetails, int badGrammarPhraseLocation, int badGrammarPhraseLength, int startOffset, int endOffset, bool markAll);
     void markAllMisspellings(RefPtr<Range>& firstMisspellingRange);
     void markAllBadGrammar();
 
 private:
     EditorClient* m_client;
     RefPtr<Range> m_range;
 
+    int findFirstGrammarDetail(const Vector<GrammarDetail>& grammarDetails, int badGrammarPhraseLocation, int startOffset, int endOffset, bool markAll) const;
     bool unifiedTextCheckerEnabled() const;
 };
 
 void checkTextOfParagraph(TextCheckerClient*, const String&, TextCheckingTypeMask, Vector<TextCheckingResult>&);
 
 bool unifiedTextCheckerEnabled(const Frame*);
 
 } // namespace WebCore
 
 #endif // TextCheckingHelper_h