Implement large cursors in Mushrome.

ui/views/mus/desktop_window_tree_host_mus.cc

Index: ui/views/mus/desktop_window_tree_host_mus.cc
diff --git a/ui/views/mus/desktop_window_tree_host_mus.cc b/ui/views/mus/desktop_window_tree_host_mus.cc
index bd880bf9fdca371b19497c0cc429d2526676438f..e7d6712110317b27dc701dce2e280c6af9d21d6e 100644
--- a/ui/views/mus/desktop_window_tree_host_mus.cc
+++ b/ui/views/mus/desktop_window_tree_host_mus.cc
@@ -165,8 +165,8 @@ class NativeCursorManagerMus : public wm::NativeCursorManager {
     }
   }
 
-  void SetCursorSet(ui::CursorSetType cursor_set,
-                    wm::NativeCursorManagerDelegate* delegate) override {
+  void SetCursorSize(ui::CursorSize cursor_size,
+                     wm::NativeCursorManagerDelegate* delegate) override {
     // TODO(erg): For now, ignore the difference between SET_NORMAL and
     // SET_LARGE here. This feels like a thing that mus should decide instead.
     //