[DMC #15] Add TextMatchMarkerListImpl::SetTextMatchMarkersActive()

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

 // Copyright 2017 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 TextMatchMarkerListImpl_h
 #define TextMatchMarkerListImpl_h
 
 #include "core/editing/markers/DocumentMarkerList.h"
 
 namespace blink {
@@ skipping 19 matching lines @@
 
   bool MoveMarkers(int length, DocumentMarkerList* dst_list) final;
   bool RemoveMarkers(unsigned start_offset, int length) final;
   bool ShiftMarkers(unsigned offset,
                     unsigned old_length,
                     unsigned new_length) final;
   DECLARE_VIRTUAL_TRACE();
 
   // TextMatchMarkerListImpl-specific
   Vector<IntRect> RenderedRects(const Node&) const;
+  // Returns true if markers within a range defined by |startOffset| and
+  // |endOffset| are found.
+  bool SetTextMatchMarkersActive(unsigned start_offset,
+                                 unsigned end_offset,
+                                 bool);
 
  private:
   HeapVector<Member<DocumentMarker>> markers_;
 
   DISALLOW_COPY_AND_ASSIGN(TextMatchMarkerListImpl);
 };
 
 DEFINE_TYPE_CASTS(TextMatchMarkerListImpl,
                   DocumentMarkerList,
                   list,
                   list->MarkerType() == DocumentMarker::kTextMatch,
                   list.MarkerType() == DocumentMarker::kTextMatch);
 
 }  // namespace blink
 
 #endif  // TextMatchMarkerListImpl_h