[WIP] Move DocumentMarker accessors into subclasses

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

Index: third_party/WebKit/Source/core/editing/markers/CompositionMarker.h
diff --git a/third_party/WebKit/Source/core/editing/markers/CompositionMarker.h b/third_party/WebKit/Source/core/editing/markers/CompositionMarker.h
index cb0c0a671d3341e6882f5ea64cc9503957e0d3da..3d5d2c6ebd756e124376db710e8aac5c615e7fed 100644
--- a/third_party/WebKit/Source/core/editing/markers/CompositionMarker.h
+++ b/third_party/WebKit/Source/core/editing/markers/CompositionMarker.h
@@ -19,12 +19,12 @@ class CORE_EXPORT CompositionMarker final : public DocumentMarker {
 
   // DocumentMarker implementations
   CompositionMarker* clone() const final;
-
   MarkerType type() const final;
 
-  Color underlineColor() const final;
-  bool thick() const final;
-  Color backgroundColor() const final;
+  // CompositionMarker-specific
+  Color underlineColor() const;
+  bool thick() const;
+  Color backgroundColor() const;
 
  protected:
   CompositionMarker(const CompositionMarker&) = default;