[DMC #24] Add SpellingMarker and GrammarMarker (subclasses of DocumentMarker)

third_party/WebKit/Source/core/editing/markers/DocumentMarkerController.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
@@ skipping 96 matching lines @@
   void DidUpdateCharacterData(CharacterData*,
                               unsigned offset,
                               unsigned old_length,
                               unsigned new_length) final;
 
  private:
   void AddMarkerInternal(
       const EphemeralRange&,
       std::function<DocumentMarker*(int, int)> create_marker_from_offsets);
   void AddMarkerToNode(Node*, DocumentMarker*);
-  void AddSpellCheckMarker(const EphemeralRange&,
-                           DocumentMarker::MarkerType,
-                           const String& description = g_empty_string);
 
   using MarkerLists = HeapVector<Member<DocumentMarkerList>,
                                  DocumentMarker::kMarkerTypeIndexesCount>;
   using MarkerMap = HeapHashMap<WeakMember<const Node>, Member<MarkerLists>>;
   static Member<DocumentMarkerList>& ListForType(MarkerLists*,
                                                  DocumentMarker::MarkerType);
   bool PossiblyHasMarkers(DocumentMarker::MarkerTypes);
   void RemoveMarkersFromList(MarkerMap::iterator, DocumentMarker::MarkerTypes);
   void RemoveMarkers(TextIterator&, DocumentMarker::MarkerTypes);
   void RemoveMarkersInternal(Node*,
                              unsigned start_offset,
                              int length,
                              DocumentMarker::MarkerTypes);
 
   MarkerMap markers_;
   // Provide a quick way to determine whether a particular marker type is absent
   // without going through the map.
   DocumentMarker::MarkerTypes possibly_existing_marker_types_;
   const Member<const Document> document_;
 };
 
 }  // namespace blink
 
 #ifndef NDEBUG
 void showDocumentMarkers(const blink::DocumentMarkerController*);
 #endif
 
 #endif  // DocumentMarkerController_h