Index: content/browser/host_zoom_map_impl.h |
diff --git a/content/browser/host_zoom_map_impl.h b/content/browser/host_zoom_map_impl.h |
index 78d643d750a37b5afe67ba16bc7f711a0b48fed4..7d911fa6ad4db5acf7fa161d1c7062e9674338c1 100644 |
--- a/content/browser/host_zoom_map_impl.h |
+++ b/content/browser/host_zoom_map_impl.h |
@@ -24,8 +24,7 @@ class WebContentsImpl; |
// HostZoomMap needs to be deleted on the UI thread because it listens |
// to notifications on there (and holds a NotificationRegistrar). |
class CONTENT_EXPORT HostZoomMapImpl : public NON_EXPORTED_BASE(HostZoomMap), |
- public NotificationObserver, |
- public base::SupportsUserData::Data { |
+ public NotificationObserver { |
public: |
HostZoomMapImpl(); |
~HostZoomMapImpl() override; |