Change ui cursor identifiers to an enum class.

ui/wm/core/compound_event_filter.cc

Index: ui/wm/core/compound_event_filter.cc
diff --git a/ui/wm/core/compound_event_filter.cc b/ui/wm/core/compound_event_filter.cc
index 84ae29a5209f19ce0dfe051317c62962d69a1c52..cd2db9a83fe8fc2c513bbf72c7ae1c5d789e7e9d 100644
--- a/ui/wm/core/compound_event_filter.cc
+++ b/ui/wm/core/compound_event_filter.cc
@@ -68,23 +68,23 @@ gfx::NativeCursor CompoundEventFilter::CursorForWindowComponent(
     int window_component) {
   switch (window_component) {
     case HTBOTTOM:
-      return ui::kCursorSouthResize;
+      return ui::CursorType::kSouthResize;
     case HTBOTTOMLEFT:
-      return ui::kCursorSouthWestResize;
+      return ui::CursorType::kSouthWestResize;
     case HTBOTTOMRIGHT:
-      return ui::kCursorSouthEastResize;
+      return ui::CursorType::kSouthEastResize;
     case HTLEFT:
-      return ui::kCursorWestResize;
+      return ui::CursorType::kWestResize;
     case HTRIGHT:
-      return ui::kCursorEastResize;
+      return ui::CursorType::kEastResize;
     case HTTOP:
-      return ui::kCursorNorthResize;
+      return ui::CursorType::kNorthResize;
     case HTTOPLEFT:
-      return ui::kCursorNorthWestResize;
+      return ui::CursorType::kNorthWestResize;
     case HTTOPRIGHT:
-      return ui::kCursorNorthEastResize;
+      return ui::CursorType::kNorthEastResize;
     default:
-      return ui::kCursorNull;
+      return ui::CursorType::kNull;
   }
 }