Delay deleting profile notification

chrome/browser/chromeos/hats/hats_notification_controller_unittest.cc

Index: chrome/browser/chromeos/hats/hats_notification_controller_unittest.cc
diff --git a/chrome/browser/chromeos/hats/hats_notification_controller_unittest.cc b/chrome/browser/chromeos/hats/hats_notification_controller_unittest.cc
index a02eff45ce7c5e4b4415331fa84f65501c630b5e..cc69995ddde973342e454e8ebc65164c4f82bec9 100644
--- a/chrome/browser/chromeos/hats/hats_notification_controller_unittest.cc
+++ b/chrome/browser/chromeos/hats/hats_notification_controller_unittest.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/chromeos/hats/hats_notification_controller.h"
 
+#include "base/run_loop.h"
 #include "base/strings/string_split.h"
 #include "chrome/browser/notifications/message_center_notification_manager.h"
 #include "chrome/browser/notifications/notification.h"
@@ -113,6 +114,9 @@ class HatsNotificationControllerTest : public BrowserWithTestWindowTest {
 
   void TearDown() override {
     g_browser_process->notification_ui_manager()->StartShutdown();
+    // The notifications may be deleted async.
+    base::RunLoop loop;
+    loop.RunUntilIdle();
     profile_manager_.reset();
     network_portal_detector::InitializeForTesting(nullptr);
     BrowserWithTestWindowTest::TearDown();