aura_shell: Remove unused native_widget_types.h include from example_factory.h

ui/aura_shell/examples/example_factory.h

Index: ui/aura_shell/examples/example_factory.h
diff --git a/ui/aura_shell/examples/example_factory.h b/ui/aura_shell/examples/example_factory.h
index 8e184193637ab2a6b5e20c1677336d1c63908c4e..d78dedb285347966ada520ef62d40311374e3980 100644
--- a/ui/aura_shell/examples/example_factory.h
+++ b/ui/aura_shell/examples/example_factory.h
@@ -2,12 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef UI_AURA_SHELL_SHELL_FACTORY_H_
-#define UI_AURA_SHELL_SHELL_FACTORY_H_
+#ifndef UI_AURA_SHELL_EXAMPLES_EXAMPLE_FACTORY_H_
+#define UI_AURA_SHELL_EXAMPLES_EXAMPLE_FACTORY_H_
 #pragma once
 
-#include "ui/gfx/native_widget_types.h"
-
 namespace views {
 class View;
 }
@@ -17,7 +15,7 @@ namespace examples {
 
 void CreatePointyBubble(views::View* anchor_view);
 
-void CreateLock();
+void CreateLockScreen();
 
 // Creates a window showing samples of commonly used widgets.
 void CreateWidgetsWindow();
@@ -25,4 +23,4 @@ void CreateWidgetsWindow();
 }  // namespace examples
 }  // namespace aura_shell
 
-#endif  // UI_AURA_SHELL_SHELL_FACTORY_H_
+#endif  // UI_AURA_SHELL_EXAMPLES_EXAMPLE_FACTORY_H_