[DMC #23] Add CompositionMarker (subclass of DocumentMarker)

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

 /*
  * 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 16 matching lines @@
  */
 
 #include "core/editing/markers/DocumentMarkerController.h"
 
 #include <algorithm>
 #include "core/dom/Node.h"
 #include "core/dom/NodeTraversal.h"
 #include "core/dom/Text.h"
 #include "core/editing/VisibleUnits.h"
 #include "core/editing/iterators/TextIterator.h"
+#include "core/editing/markers/CompositionMarker.h"
 #include "core/editing/markers/CompositionMarkerListImpl.h"
 #include "core/editing/markers/DocumentMarkerListEditor.h"
 #include "core/editing/markers/GrammarMarkerListImpl.h"
 #include "core/editing/markers/SpellingMarkerListImpl.h"
 #include "core/editing/markers/TextMatchMarker.h"
 #include "core/editing/markers/TextMatchMarkerListImpl.h"
 #include "core/frame/LocalFrameView.h"
 #include "core/layout/LayoutObject.h"
 
 #ifndef NDEBUG
@@ skipping 108 matching lines @@
   // throttling algorithm. crbug.com/6819.
 }
 
 void DocumentMarkerController::AddCompositionMarker(const EphemeralRange& range,
                                                     Color underline_color,
                                                     bool thick,
                                                     Color background_color) {
   DCHECK(!document_->NeedsLayoutTreeUpdate());
   AddMarkerInternal(range, [underline_color, thick, background_color](
                                int start_offset, int end_offset) {
-    return new DocumentMarker(start_offset, end_offset, underline_color, thick,
-                              background_color);
+    return new CompositionMarker(start_offset, end_offset, underline_color,
+                                 thick, background_color);
   });
 }
 
 void DocumentMarkerController::PrepareForDestruction() {
   Clear();
 }
 
 void DocumentMarkerController::RemoveMarkers(
     TextIterator& marked_text,
     DocumentMarker::MarkerTypes marker_types) {
@@ skipping 541 matching lines @@
 }
 
 }  // namespace blink
 
 #ifndef NDEBUG
 void showDocumentMarkers(const blink::DocumentMarkerController* controller) {
   if (controller)
     controller->ShowMarkers();
 }
 #endif