Change ui cursor identifiers to an enum class.

ui/views/native_cursor_aura.cc

Index: ui/views/native_cursor_aura.cc
diff --git a/ui/views/native_cursor_aura.cc b/ui/views/native_cursor_aura.cc
index cafe684aa0b4f4e76ce383b2facfcde07288da80..a9ff8696e888d7500f5e685c1bee85c081f61f61 100644
--- a/ui/views/native_cursor_aura.cc
+++ b/ui/views/native_cursor_aura.cc
@@ -9,23 +9,23 @@
 namespace views {
 
 gfx::NativeCursor GetNativeIBeamCursor() {
-  return ui::kCursorIBeam;
+  return ui::CursorType::IBEAM;
 }
 
 gfx::NativeCursor GetNativeHandCursor() {
-  return ui::kCursorHand;
+  return ui::CursorType::HAND;
 }
 
 gfx::NativeCursor GetNativeColumnResizeCursor() {
-  return ui::kCursorColumnResize;
+  return ui::CursorType::COLUMN_RESIZE;
 }
 
 gfx::NativeCursor GetNativeEastWestResizeCursor() {
-  return ui::kCursorEastWestResize;
+  return ui::CursorType::EAST_WEST_RESIZE;
 }
 
 gfx::NativeCursor GetNativeNorthSouthResizeCursor() {
-  return ui::kCursorNorthSouthResize;
+  return ui::CursorType::NORTH_SOUTH_RESIZE;
 }
 
 }  // namespace views