Make SelectionState enum class

third_party/WebKit/Source/core/paint/PartPainter.cpp

Index: third_party/WebKit/Source/core/paint/PartPainter.cpp
diff --git a/third_party/WebKit/Source/core/paint/PartPainter.cpp b/third_party/WebKit/Source/core/paint/PartPainter.cpp
index 1b5b2321f9e8a6fa19a4319902e7c907e1d512e9..9f056a8a0f798f52125b67883623f7854a2fe50a 100644
--- a/third_party/WebKit/Source/core/paint/PartPainter.cpp
+++ b/third_party/WebKit/Source/core/paint/PartPainter.cpp
@@ -21,22 +21,22 @@ namespace blink {
 
 bool PartPainter::IsSelected() const {
   SelectionState s = layout_part_.GetSelectionState();
-  if (s == SelectionNone)
+  if (s == SelectionState::kNone)
     return false;
-  if (s == SelectionInside)
+  if (s == SelectionState::kInside)
     return true;
 
   int selection_start, selection_end;
   std::tie(selection_start, selection_end) = layout_part_.SelectionStartEnd();
-  if (s == SelectionStart)
+  if (s == SelectionState::kStart)
     return selection_start == 0;
 
   int end = layout_part_.GetNode()->hasChildren()
                 ? layout_part_.GetNode()->CountChildren()
                 : 1;
-  if (s == SelectionEnd)
+  if (s == SelectionState::kEnd)
     return selection_end == end;
-  if (s == SelectionBoth)
+  if (s == SelectionState::kStartAndEnd)
     return selection_start == 0 && selection_end == end;
 
   DCHECK(0);