[DMC #26] Add CompositionMarker::Thickness enum

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

Index: third_party/WebKit/Source/core/editing/markers/DocumentMarkerController.h
diff --git a/third_party/WebKit/Source/core/editing/markers/DocumentMarkerController.h b/third_party/WebKit/Source/core/editing/markers/DocumentMarkerController.h
index 6957d2c96f990b66589e3ae7c7c84ab9f7fd88b5..a8ec6d91673504b7a6179db3881382ecb8a63a54 100644
--- a/third_party/WebKit/Source/core/editing/markers/DocumentMarkerController.h
+++ b/third_party/WebKit/Source/core/editing/markers/DocumentMarkerController.h
@@ -32,6 +32,7 @@
 #include "core/CoreExport.h"
 #include "core/dom/SynchronousMutationObserver.h"
 #include "core/editing/iterators/TextIterator.h"
+#include "core/editing/markers/CompositionMarker.h"
 #include "core/editing/markers/DocumentMarker.h"
 #include "core/editing/markers/TextMatchMarker.h"
 #include "platform/geometry/IntRect.h"
@@ -63,7 +64,7 @@ class CORE_EXPORT DocumentMarkerController final
   void AddTextMatchMarker(const EphemeralRange&, TextMatchMarker::MatchStatus);
   void AddCompositionMarker(const EphemeralRange&,
                             Color underline_color,
-                            bool thick,
+                            CompositionMarker::Thickness,
                             Color background_color);
 
   void MoveMarkers(Node* src_node, int length, Node* dst_node);