Index: ui/aura/env.h |
diff --git a/ui/aura/env.h b/ui/aura/env.h |
index fc83ac86c73c0cf24de4c098a778946dd64dcdcf..a4f676684821f4bbf8349076729eda7bd1db84b7 100644 |
--- a/ui/aura/env.h |
+++ b/ui/aura/env.h |
@@ -7,6 +7,7 @@ |
#include "base/memory/scoped_ptr.h" |
#include "base/observer_list.h" |
+#include "base/supports_user_data.h" |
#include "ui/aura/aura_export.h" |
#include "ui/events/event_handler.h" |
#include "ui/events/event_target.h" |
@@ -28,7 +29,7 @@ class Window; |
class WindowTreeHost; |
// A singleton object that tracks general state within Aura. |
-class AURA_EXPORT Env : public ui::EventTarget { |
+class AURA_EXPORT Env : public ui::EventTarget, public base::SupportsUserData { |
public: |
// Creates the single Env instance (if it hasn't been created yet). If |
// |create_event_source| is true a PlatformEventSource is created. |