Before object destruction, make sure that its select dialogs are told that we

chrome/browser/ui/gtk/certificate_dialogs.cc

Index: chrome/browser/ui/gtk/certificate_dialogs.cc
===================================================================
--- chrome/browser/ui/gtk/certificate_dialogs.cc	(revision 79409)
+++ chrome/browser/ui/gtk/certificate_dialogs.cc	(working copy)
@@ -107,6 +107,11 @@
 }
 
 Exporter::~Exporter() {
+  // There may be pending file dialogs, we need to tell them that we've gone
+  // away so they don't try and call back to us.
+  if (select_file_dialog_.get())
+    select_file_dialog_->ListenerDestroyed();
+
   x509_certificate_model::DestroyCertChain(&cert_chain_list_);
 }