[DMC #1.2] Add DocumentMarkerListEditor::MoveMarkers()

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 41 matching lines @@
  private:
   Vector<String> words_;
 };
 
 class DocumentMarkerListEditor {
  public:
   using MarkerList = HeapVector<Member<RenderedDocumentMarker>>;
 
   static void AddMarker(MarkerList*, const DocumentMarker*);
 
+  // Returns true if a marker was moved, false otherwise.
+  static bool MoveMarkers(MarkerList* src_list,
+                          int length,
+                          MarkerList* dst_list);
+
   // Returns true if a marker was removed, false otherwise.
   static bool RemoveMarkers(MarkerList*, unsigned start_offset, int length);
 
   // Returns true if a marker was shifted or removed, false otherwise.
   static bool ShiftMarkers(MarkerList*,
                            unsigned offset,
                            unsigned old_length,
                            unsigned new_length);
 
  private:
@@ skipping 93 matching lines @@
   const Member<const Document> document_;
 };
 
 }  // namespace blink
 
 #ifndef NDEBUG
 void showDocumentMarkers(const blink::DocumentMarkerController*);
 #endif
 
 #endif  // DocumentMarkerController_h