Changed WritingMode to an enum class and renamed its members

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

Index: third_party/WebKit/Source/core/layout/LayoutDetailsMarker.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutDetailsMarker.cpp b/third_party/WebKit/Source/core/layout/LayoutDetailsMarker.cpp
index 52903bbc78f142732e33e5784d2023de29478a5d..e58624e047c3e6e2b8f8b9fa4e2757ce69906772 100644
--- a/third_party/WebKit/Source/core/layout/LayoutDetailsMarker.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutDetailsMarker.cpp
@@ -34,15 +34,15 @@ LayoutDetailsMarker::LayoutDetailsMarker(Element* element)
 
 LayoutDetailsMarker::Orientation LayoutDetailsMarker::getOrientation() const {
   switch (style()->getWritingMode()) {
-    case TopToBottomWritingMode:
+    case WritingMode::HorizontalTb:
       if (style()->isLeftToRightDirection())
         return isOpen() ? Down : Right;
       return isOpen() ? Down : Left;
-    case RightToLeftWritingMode:
+    case WritingMode::VerticalRl:
       if (style()->isLeftToRightDirection())
         return isOpen() ? Left : Down;
       return isOpen() ? Left : Up;
-    case LeftToRightWritingMode:
+    case WritingMode::VerticalLr:
       if (style()->isLeftToRightDirection())
         return isOpen() ? Right : Down;
       return isOpen() ? Right : Up;