Display local signin error without browser and record the path of selected profile in user manager …

chrome/browser/ui/webui/signin/signin_create_profile_handler.cc

Index: chrome/browser/ui/webui/signin/signin_create_profile_handler.cc
diff --git a/chrome/browser/ui/webui/signin/signin_create_profile_handler.cc b/chrome/browser/ui/webui/signin/signin_create_profile_handler.cc
index 0f0acf9d1b4b3c9b3406dc7536b1b76ab2a950de..96c7a3e325d29e2af9c5a60e51f1bbcdf412dce1 100644
--- a/chrome/browser/ui/webui/signin/signin_create_profile_handler.cc
+++ b/chrome/browser/ui/webui/signin/signin_create_profile_handler.cc
@@ -423,11 +423,8 @@ void SigninCreateProfileHandler::OpenNewWindowForProfile(
 }
 
 void SigninCreateProfileHandler::OpenSigninDialogForProfile(Profile* profile) {
-// TODO(zmin): Remove the switcher once the UserManager API is finished on Mac.
-#if !defined(OS_MACOSX)
   UserManager::ShowSigninDialog(web_ui()->GetWebContents()->GetBrowserContext(),
                                 profile->GetPath());
-#endif
 }
 
 void SigninCreateProfileHandler::ShowProfileCreationError(