Index: ui/gfx/win/singleton_hwnd.h |
diff --git a/ui/gfx/win/singleton_hwnd.h b/ui/gfx/win/singleton_hwnd.h |
index 50fb9fd9df9e0d36187cbcfdbb5cc385c6588641..bdc698d2f3b40586330bd93acb25e17e1915fbd6 100644 |
--- a/ui/gfx/win/singleton_hwnd.h |
+++ b/ui/gfx/win/singleton_hwnd.h |
@@ -11,6 +11,7 @@ |
#include "base/basictypes.h" |
#include "base/callback_forward.h" |
#include "base/observer_list.h" |
+#include "base/threading/thread_checker.h" |
#include "ui/gfx/win/window_impl.h" |
template<typename T> struct DefaultSingletonTraits; |
@@ -52,6 +53,7 @@ class GFX_EXPORT SingletonHwnd : public WindowImpl { |
// List of registered observers. |
ObserverList<Observer> observer_list_; |
+ base::ThreadChecker thread_checker_; |
DISALLOW_COPY_AND_ASSIGN(SingletonHwnd); |
}; |