Add a TODO comment with a link to bug 444955

content/browser/frame_host/render_frame_host_manager_unittest.cc

Index: content/browser/frame_host/render_frame_host_manager_unittest.cc
diff --git a/content/browser/frame_host/render_frame_host_manager_unittest.cc b/content/browser/frame_host/render_frame_host_manager_unittest.cc
index bbe0aec7afc58e0a33cb6177bb8535694dd486a7..3d7a5c506b5246e535d784e9dc8f67b96e32f018 100644
--- a/content/browser/frame_host/render_frame_host_manager_unittest.cc
+++ b/content/browser/frame_host/render_frame_host_manager_unittest.cc
@@ -1902,7 +1902,7 @@ TEST_F(RenderFrameHostManagerTest, DetachPendingChild) {
 #if 0
   // TODO(nick): Currently a proxy to the removed frame lingers in the parent.
   // Enable this assert below once the proxies to the subframe are correctly
-  // cleaned up after detach.
+  // cleaned up after detach. http://crbug.com/444955.
   ASSERT_TRUE(site_instance->HasOneRef())
       << "This SiteInstance should be destroyable now.";
 #endif