Remaining bits to get views_examples_with_content_exe to work on Mac

ui/native_theme/native_theme_mac.h

Index: ui/native_theme/native_theme_mac.h
diff --git a/ui/native_theme/native_theme_mac.h b/ui/native_theme/native_theme_mac.h
index 20378426db5bdac63a7d7a552e15310c852d1f77..3e4f042a9c426a272653b4b328fcff085b1d360f 100644
--- a/ui/native_theme/native_theme_mac.h
+++ b/ui/native_theme/native_theme_mac.h
@@ -5,12 +5,14 @@
 #ifndef UI_NATIVE_THEME_NATIVE_THEME_MAC_H_
 #define UI_NATIVE_THEME_NATIVE_THEME_MAC_H_
 
-#include "ui/native_theme/native_theme_base.h"
+#include "ui/native_theme/fallback_theme.h"
+#include "ui/native_theme/native_theme_export.h"
 
 namespace ui {
 
 // Mac implementation of native theme support.
-class NativeThemeMac : public NativeThemeBase {
+// TODO(tapted): This should not use FallbackTheme.
+class NativeThemeMac : public FallbackTheme {
  public:
   static NativeThemeMac* instance();