[DMC #25] Make DocumentMarker::GetType() virtual

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

Index: third_party/WebKit/Source/core/editing/markers/SpellingMarker.cpp
diff --git a/third_party/WebKit/Source/core/editing/markers/SpellingMarker.cpp b/third_party/WebKit/Source/core/editing/markers/SpellingMarker.cpp
index fa0b1b1bce88b5645c277ed23de06f8291033a82..0d7d11008ce9bc7e592e5febec96bd7108de9039 100644
--- a/third_party/WebKit/Source/core/editing/markers/SpellingMarker.cpp
+++ b/third_party/WebKit/Source/core/editing/markers/SpellingMarker.cpp
@@ -9,11 +9,12 @@ namespace blink {
 SpellingMarker::SpellingMarker(unsigned start_offset,
                                unsigned end_offset,
                                const String& description)
-    : SpellCheckMarker(DocumentMarker::kSpelling,
-                       start_offset,
-                       end_offset,
-                       description) {
+    : SpellCheckMarker(start_offset, end_offset, description) {
   DCHECK_LT(start_offset, end_offset);
 }
 
+DocumentMarker::MarkerType SpellingMarker::GetType() const {
+  return DocumentMarker::kSpelling;
+}
+
 }  // namespace blink