[WIP] Refactor DocumentMarker

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

+// 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.
+
+#include "core/editing/markers/CompositionMarker.h"
+
+namespace blink {
+
+CompositionMarker::CompositionMarker(unsigned startOffset,
+                                     unsigned endOffset,
+                                     Color underlineColor,
+                                     bool thick,
+                                     Color backgroundColor)
+    : DocumentMarker(startOffset, endOffset),
+      m_underlineColor(underlineColor),
+      m_thick(thick),
+      m_backgroundColor(backgroundColor) {}
+
+CompositionMarker* CompositionMarker::clone() const {
+  return new CompositionMarker(*this);
+}
+
+DocumentMarker::MarkerType CompositionMarker::type() const {
+  return DocumentMarker::Composition;
+}
+
+Color CompositionMarker::underlineColor() const {
+  return m_underlineColor;
+}
+
+bool CompositionMarker::thick() const {
+  return m_thick;
+}
+
+Color CompositionMarker::backgroundColor() const {
+  return m_backgroundColor;
+}
+
+}  // namespace blink