[DMC #26] Add CompositionMarker::Thickness enum

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 9fe170cf81bcf598fbfc57b652ce6fbceb0a8027..0c152264f72e7e802d7d2b66800df6e585672a3d 100644
--- a/third_party/WebKit/Source/core/editing/markers/CompositionMarker.h
+++ b/third_party/WebKit/Source/core/editing/markers/CompositionMarker.h
@@ -16,10 +16,12 @@ namespace blink {
 // transparent).
 class CORE_EXPORT CompositionMarker final : public DocumentMarker {
  public:
+  enum class Thickness { kThin, kThick };
+
   CompositionMarker(unsigned start_offset,
                     unsigned end_offset,
                     Color underline_color,
-                    bool thick,
+                    Thickness,
                     Color background_color);
 
   // DocumentMarker implementations
@@ -27,13 +29,13 @@ class CORE_EXPORT CompositionMarker final : public DocumentMarker {
 
   // CompositionMarker-specific
   Color UnderlineColor() const;
-  bool Thick() const;
+  bool IsThick() const;
   Color BackgroundColor() const;
 
  private:
   Color underline_color_;
   Color background_color_;
-  bool thick_;
+  Thickness thickness_;
 
   DISALLOW_COPY_AND_ASSIGN(CompositionMarker);
 };