Index: content/browser/site_instance_impl.cc |
diff --git a/content/browser/site_instance_impl.cc b/content/browser/site_instance_impl.cc |
index f1555dc1af8f627c7eb50d811a3ae445adec9678..89b25b407f4e3cfd54501be76bc4d1eb8712940f 100644 |
--- a/content/browser/site_instance_impl.cc |
+++ b/content/browser/site_instance_impl.cc |
@@ -141,6 +141,7 @@ void SiteInstanceImpl::SetSite(const GURL& url) { |
// be fixed, but until then, we should still not set the site of a |
// SiteInstance more than once. |
DCHECK(!has_site_); |
+ DCHECK(!browsing_instance_->HasSiteInstance(url)); |
// Remember that this SiteInstance has been used to load a URL, even if the |
// URL is invalid. |