MacViews: Introduce native_cursor.h to provide cursor "literals"

ui/views/controls/single_split_view.cc

Index: ui/views/controls/single_split_view.cc
diff --git a/ui/views/controls/single_split_view.cc b/ui/views/controls/single_split_view.cc
index 29b49a34344a3f5dade0afeb07a6d3e1e80f42da..5909ed1a5e182a5a2752dfc33cf2af6d89464ba9 100644
--- a/ui/views/controls/single_split_view.cc
+++ b/ui/views/controls/single_split_view.cc
@@ -10,6 +10,7 @@
 #include "ui/gfx/canvas.h"
 #include "ui/views/background.h"
 #include "ui/views/controls/single_split_view_listener.h"
+#include "ui/views/native_cursor.h"
 
 namespace views {
 
@@ -88,8 +89,8 @@ gfx::Size SingleSplitView::GetPreferredSize() {
 gfx::NativeCursor SingleSplitView::GetCursor(const ui::MouseEvent& event) {
   if (!IsPointInDivider(event.location()))
     return gfx::kNullCursor;
-  return is_horizontal_ ?
-      ui::kCursorEastWestResize : ui::kCursorNorthSouthResize;
+  return is_horizontal_ ? GetNativeEastWestResizeCursor()
+                        : GetNativeNorthSouthResizeCursor();
 }
 
 int SingleSplitView::GetDividerSize() const {