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

third_party/WebKit/Source/core/editing/markers/CompositionMarkerListImplTest.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/CompositionMarkerListImpl.h"
 
 #include "core/editing/EditingTestBase.h"
+#include "core/editing/markers/CompositionMarker.h"
 
 namespace blink {
 
 class CompositionMarkerListImplTest : public EditingTestBase {
  protected:
   CompositionMarkerListImplTest()
       : marker_list_(new CompositionMarkerListImpl()) {}
 
   DocumentMarker* CreateMarker(unsigned start_offset, unsigned end_offset) {
-    return new DocumentMarker(start_offset, end_offset, Color::kBlack, false,
-                              Color::kBlack);
+    return new CompositionMarker(start_offset, end_offset, Color::kBlack, false,
+                                 Color::kBlack);
   }
 
   Persistent<CompositionMarkerListImpl> marker_list_;
 };
 
 // CompositionMarkerListImpl shouldn't merge markers with touching endpoints
 TEST_F(CompositionMarkerListImplTest, Add) {
   EXPECT_EQ(0u, marker_list_->GetMarkers().size());
 
   marker_list_->Add(CreateMarker(0, 1));
   marker_list_->Add(CreateMarker(1, 2));
 
   EXPECT_EQ(2u, marker_list_->GetMarkers().size());
 
   EXPECT_EQ(0u, marker_list_->GetMarkers()[0]->StartOffset());
   EXPECT_EQ(1u, marker_list_->GetMarkers()[0]->EndOffset());
 
   EXPECT_EQ(1u, marker_list_->GetMarkers()[1]->StartOffset());
   EXPECT_EQ(2u, marker_list_->GetMarkers()[1]->EndOffset());
 }
 
 }  // namespace blink