[views-mus] Support custom cursors.

ui/aura/test/mus/test_window_tree.h

Index: ui/aura/test/mus/test_window_tree.h
diff --git a/ui/aura/test/mus/test_window_tree.h b/ui/aura/test/mus/test_window_tree.h
index 916e8a1d861676edd9397ed3d0693b7a06b1dab5..5f7bc7c49d32749eb2690ac01db19dd067839ef1 100644
--- a/ui/aura/test/mus/test_window_tree.h
+++ b/ui/aura/test/mus/test_window_tree.h
@@ -175,9 +175,9 @@ class TestWindowTree : public ui::mojom::WindowTree {
   void SetCanFocus(uint32_t window_id, bool can_focus) override;
   void SetEventTargetingPolicy(uint32_t window_id,
                                ui::mojom::EventTargetingPolicy policy) override;
-  void SetPredefinedCursor(uint32_t change_id,
-                           uint32_t window_id,
-                           ui::mojom::CursorType cursor_id) override;
+  void SetCursor(uint32_t change_id,
+                 Id transport_window_id,
+                 ui::CursorData cursor_data) override;
   void SetWindowTextInputState(uint32_t window_id,
                                mojo::TextInputStatePtr state) override;
   void SetImeVisibility(uint32_t window_id,