[DMC #24] Add SpellingMarker and GrammarMarker (subclasses of DocumentMarker)

third_party/WebKit/Source/core/editing/spellcheck/SpellCheckerTest.cpp

 // Copyright 2016 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/spellcheck/SpellChecker.h"
 
 #include "core/editing/Editor.h"
 #include "core/editing/markers/DocumentMarkerController.h"
+#include "core/editing/markers/SpellCheckMarker.h"
 #include "core/editing/spellcheck/SpellCheckRequester.h"
 #include "core/editing/spellcheck/SpellCheckTestBase.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/LocalFrameView.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLInputElement.h"
 
 namespace blink {
 
 class SpellCheckerTest : public SpellCheckTestBase {
@@ skipping 83 matching lines @@
   result.length = 8;
   result.replacements = Vector<String>({"spellcheck", "spillchuck"});
 
   GetDocument().GetFrame()->GetSpellChecker().MarkAndReplaceFor(
       request, Vector<TextCheckingResult>({result}));
 
   ASSERT_EQ(1u, GetDocument().Markers().Markers().size());
 
   // The Spelling marker's description should be a newline-separated list of the
   // suggested replacements
-  EXPECT_EQ("spellcheck\nspillchuck",
-            GetDocument().Markers().Markers()[0]->Description());
+  EXPECT_EQ(
+      "spellcheck\nspillchuck",
+      ToSpellCheckMarker(GetDocument().Markers().Markers()[0])->Description());
 }
 
 }  // namespace blink