[blink] Add a DocumentMarker::MisspellingMarkers helper

Source/core/dom/DocumentMarker.h

 /*
  * This file is part of the DOM implementation for WebCore.
  *
  * Copyright (C) 2006 Apple Computer, Inc.
  *
  * 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.
  *
@@ skipping 50 matching lines @@
     };
 
     class AllMarkers : public MarkerTypes {
     public:
         AllMarkers()
             : MarkerTypes(Spelling | Grammar | TextMatch)
         {
         }
     };
 
+    class MisspellingMarkers : public MarkerTypes {
+    public:
+        MisspellingMarkers()
+            : MarkerTypes(Spelling | Grammar)
+        {
+        }
+    };
+
     DocumentMarker();
     DocumentMarker(MarkerType, unsigned startOffset, unsigned endOffset);
     DocumentMarker(MarkerType, unsigned startOffset, unsigned endOffset, const String& description);
     DocumentMarker(MarkerType, unsigned startOffset, unsigned endOffset, const String& description, uint32_t hash);
     DocumentMarker(unsigned startOffset, unsigned endOffset, bool activeMatch);
     DocumentMarker(MarkerType, unsigned startOffset, unsigned endOffset, PassRefPtr<DocumentMarkerDetails>);
 
     MarkerType type() const { return m_type; }
     unsigned startOffset() const { return m_startOffset; }
     unsigned endOffset() const { return m_endOffset; }
@@ skipping 40 matching lines @@
 public:
     DocumentMarkerDetails() { }
     virtual ~DocumentMarkerDetails();
     virtual bool isDescription() const { return false; }
     virtual bool isTextMatch() const { return false; }
 };
 
 } // namespace WebCore
 
 #endif // DocumentMarker_h