[DMC #17.5] Eliminate DocumentMarker and TextMatchMarker copy constructors

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

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 52 matching lines @@
   void NullifyRenderedRect() {
     state_ = State::kValidNull;
     // Now |m_renderedRect| can not be accessed until |setRenderedRect| is
     // called.
   }
 
   void Invalidate() { state_ = State::kInvalid; }
   bool IsValid() const { return state_ != State::kInvalid; }
 
  private:
-  explicit TextMatchMarker(const DocumentMarker& marker)
-      : DocumentMarker(marker), state_(State::kInvalid) {}
-
   LayoutRect rendered_rect_;
   State state_;
 };
 
 DEFINE_TYPE_CASTS(TextMatchMarker,
                   DocumentMarker,
                   marker,
                   marker->GetType() == DocumentMarker::kTextMatch,
                   marker.GetType() == DocumentMarker::kTextMatch);
 
 }  // namespace blink
 
 #endif