Don't create a new profile when cleaning up stale ephemeral profiles.

components/search_engines/template_url_service.cc

Index: components/search_engines/template_url_service.cc
diff --git a/components/search_engines/template_url_service.cc b/components/search_engines/template_url_service.cc
index 923fa557248e5806dda48f64eb23fcf2964009d9..935aa5fefa1c2ad85e801e256926f0e862ce5506 100644
--- a/components/search_engines/template_url_service.cc
+++ b/components/search_engines/template_url_service.cc
@@ -806,6 +806,11 @@ void TemplateURLService::Shutdown() {
     web_data_service_->CancelRequest(load_handle_);
   }
   web_data_service_ = NULL;
+
+  // Notify observers so they can unregister themselves.
+  // TODO(bauerb): Observers shouldn't outlive this class; see
+  // https://crbug.com/483528.
+  on_loaded_callbacks_.Notify();
 }
 
 syncer::SyncDataList TemplateURLService::GetAllSyncData(