[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 eae9dcdfb7d579b29006c7e20468cd6df3d288b4..16e5008886049c2c59c6e0f0da33efef8907bc4b 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"
@@ -61,7 +62,7 @@ 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);