Index: chrome/browser/ui/views/constrained_window_views.cc |
diff --git a/chrome/browser/ui/views/constrained_window_views.cc b/chrome/browser/ui/views/constrained_window_views.cc |
index f71d468fbfe4b8a6c1c8dd3cfbbc49dd2a6e51ce..c1d03bdaba2ad576e1fc91f7ef4c89c2789542e8 100644 |
--- a/chrome/browser/ui/views/constrained_window_views.cc |
+++ b/chrome/browser/ui/views/constrained_window_views.cc |
@@ -92,6 +92,8 @@ class WebContentsModalDialogHostObserverViews |
: host_(host), |
target_widget_(target_widget), |
native_window_property_(native_window_property) { |
+ DCHECK(host_); |
+ DCHECK(target_widget_); |
host_->AddObserver(this); |
target_widget_->AddObserver(this); |
} |