Index: ui/native_theme/native_theme.h |
diff --git a/ui/native_theme/native_theme.h b/ui/native_theme/native_theme.h |
index 057d49ca55e2554f89bc213ca3772402539c0889..a9f56d5d6d9d1a0d4094603879e366d31d3b4ead 100644 |
--- a/ui/native_theme/native_theme.h |
+++ b/ui/native_theme/native_theme.h |
@@ -199,6 +199,7 @@ class NATIVE_THEME_EXPORT NativeTheme { |
union NATIVE_THEME_EXPORT ExtraParams { |
ExtraParams(); |
+ ExtraParams(const ExtraParams& other); |
ButtonExtraParams button; |
InnerSpinButtonExtraParams inner_spin; |