Fix sync E2E tests due to unclosed avatar windows.

chrome/browser/sync/test/integration/sync_test.cc

Index: chrome/browser/sync/test/integration/sync_test.cc
diff --git a/chrome/browser/sync/test/integration/sync_test.cc b/chrome/browser/sync/test/integration/sync_test.cc
index c0f0d85b24592f60bf9aa7e11a3370ae33977b4b..bc341be42e1312fefc99e42723da97ad69626331 100644
--- a/chrome/browser/sync/test/integration/sync_test.cc
+++ b/chrome/browser/sync/test/integration/sync_test.cc
@@ -44,6 +44,7 @@
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "chrome/browser/ui/views/profiles/profile_chooser_view.h"
 #include "chrome/browser/ui/webui/signin/login_ui_service.h"
 #include "chrome/browser/ui/webui/signin/login_ui_service_factory.h"
 #include "chrome/common/chrome_constants.h"
@@ -576,6 +577,11 @@ bool SyncTest::SetupSync() {
       LoginUIServiceFactory::GetForProfile(GetProfile(i))->
           SyncConfirmationUIClosed(false /* configure_sync_first */);
     }
+
+    // Upon multiple profiles sign in, the profile chooser widget stays open and
+    // causes problems at test shutdown. This is a harmless command to close
+    // the widget in case it was showing.
+    ProfileChooserView::Hide();
   }
 
   return true;