[ActiveSuggestionMarker #2] Add ActiveSuggestionMarker

third_party/WebKit/Source/core/editing/markers/ActiveSuggestionMarkerListImpl.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/ActiveSuggestionMarkerListImpl.h"
+
+#include "core/editing/markers/DocumentMarkerListEditor.h"
+
+namespace blink {
+
+DocumentMarker::MarkerType ActiveSuggestionMarkerListImpl::MarkerType() const {
+  return DocumentMarker::kActiveSuggestion;
+}
+
+bool ActiveSuggestionMarkerListImpl::IsEmpty() const {
+  return markers_.IsEmpty();
+}
+
+void ActiveSuggestionMarkerListImpl::Add(DocumentMarker* marker) {
+  DocumentMarkerListEditor::AddMarkerWithoutMergingOverlapping(&markers_,
+                                                               marker);
+}
+
+void ActiveSuggestionMarkerListImpl::Clear() {
+  markers_.clear();
+}
+
+const HeapVector<Member<DocumentMarker>>&
+ActiveSuggestionMarkerListImpl::GetMarkers() const {
+  return markers_;
+}
+
+bool ActiveSuggestionMarkerListImpl::MoveMarkers(
+    int length,
+    DocumentMarkerList* dst_markers_) {
+  return DocumentMarkerListEditor::MoveMarkers(&markers_, length, dst_markers_);
+}
+
+bool ActiveSuggestionMarkerListImpl::RemoveMarkers(unsigned start_offset,
+                                                   int length) {
+  return DocumentMarkerListEditor::RemoveMarkers(&markers_, start_offset,
+                                                 length);
+}
+
+bool ActiveSuggestionMarkerListImpl::ShiftMarkers(unsigned offset,
+                                                  unsigned old_length,
+                                                  unsigned new_length) {
+  return DocumentMarkerListEditor::ShiftMarkersContentIndependent(
+      &markers_, offset, old_length, new_length);
+}
+
+DEFINE_TRACE(ActiveSuggestionMarkerListImpl) {
+  visitor->Trace(markers_);
+  DocumentMarkerList::Trace(visitor);
+}
+
+}  // namespace blink