[MD settings] fix for opening sync user login

chrome/browser/ui/webui/settings/people_handler.cc

Index: chrome/browser/ui/webui/settings/people_handler.cc
diff --git a/chrome/browser/ui/webui/settings/people_handler.cc b/chrome/browser/ui/webui/settings/people_handler.cc
index ffb02c86bbe84b5c77c26634ee626ccb6f7097a1..b0a5a93500bf03c8e80d35dff3c4f10941287c4f 100644
--- a/chrome/browser/ui/webui/settings/people_handler.cc
+++ b/chrome/browser/ui/webui/settings/people_handler.cc
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/ui/webui/settings/people_handler.h"
 
+#include <string>
+
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
@@ -601,7 +603,7 @@ void PeopleHandler::HandleShowSetupUI(const base::ListValue* args) {
   // If a setup wizard is present on this page or another, bring it to focus.
   // Otherwise, display a new one on this page.
   if (!FocusExistingWizardIfPresent())
-    OpenSyncSetup(args);
+    OpenSyncSetup(nullptr);
 }
 
 #if defined(OS_CHROMEOS)
@@ -617,7 +619,7 @@ void PeopleHandler::HandleDoSignOutOnAuthError(const base::ListValue* args) {
 void PeopleHandler::HandleStartSignin(const base::ListValue* args) {
   // Should only be called if the user is not already signed in.
   DCHECK(!SigninManagerFactory::GetForProfile(profile_)->IsAuthenticated());
-  OpenSyncSetup(args);
+  OpenSyncSetup(nullptr);
 }
 
 void PeopleHandler::HandleStopSyncing(const base::ListValue* args) {