Make SelectionState enum class

third_party/WebKit/Source/core/layout/LayoutBlock.cpp

Index: third_party/WebKit/Source/core/layout/LayoutBlock.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBlock.cpp b/third_party/WebKit/Source/core/layout/LayoutBlock.cpp
index 3b785c0c51041c6b1153605af5e8fed14165e6db..bb16fa3e3c90298d1aa4e77b38fb9c510c1c22bb 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBlock.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBlock.cpp
@@ -930,8 +930,10 @@ LayoutUnit LayoutBlock::LogicalRightSelectionOffset(
 void LayoutBlock::SetSelectionState(SelectionState state) {
   LayoutBox::SetSelectionState(state);
 
-  if (InlineBoxWrapper() && CanUpdateSelectionOnRootLineBoxes())
-    InlineBoxWrapper()->Root().SetHasSelectedChildren(state != SelectionNone);
+  if (InlineBoxWrapper() && CanUpdateSelectionOnRootLineBoxes()) {
+    InlineBoxWrapper()->Root().SetHasSelectedChildren(state !=
+                                                      SelectionState::kNone);
+  }
 }
 
 TrackedLayoutBoxListHashSet* LayoutBlock::PositionedObjectsInternal() const {