Make the cursor have separate mode for disabled mouse events and invisible.

ash/test/cursor_manager_test_api.h

Index: ash/test/cursor_manager_test_api.h
diff --git a/ash/test/cursor_manager_test_api.h b/ash/test/cursor_manager_test_api.h
index 5cb25add8d826b4fabc7cdfad281c8f367b63ec2..fd914942a992e1fccc2f7721f0018cdf179d9df4 100644
--- a/ash/test/cursor_manager_test_api.h
+++ b/ash/test/cursor_manager_test_api.h
@@ -20,8 +20,9 @@ class CursorManagerTestApi {
   explicit CursorManagerTestApi(CursorManager* cursor_manager);
   ~CursorManagerTestApi();
 
-  gfx::NativeCursor GetCurrentCursor();
-  float GetDeviceScaleFactor();
+  gfx::NativeCursor GetCurrentCursor() const;
+  bool GetEnabled() const;
+  float GetDeviceScaleFactor() const;
 
  private:
   CursorManager* cursor_manager_;