Do not dismiss the Save Password Infobar when a redirection occurs.

ios/chrome/browser/passwords/ios_chrome_save_password_infobar_delegate.mm

Index: ios/chrome/browser/passwords/ios_chrome_save_password_infobar_delegate.mm
diff --git a/ios/chrome/browser/passwords/ios_chrome_save_password_infobar_delegate.mm b/ios/chrome/browser/passwords/ios_chrome_save_password_infobar_delegate.mm
index 7e444c5f36298684ef9aa01c965e7d071c8f6b23..e5a1797671c0dcef8f826f25026c27b759fec106 100644
--- a/ios/chrome/browser/passwords/ios_chrome_save_password_infobar_delegate.mm
+++ b/ios/chrome/browser/passwords/ios_chrome_save_password_infobar_delegate.mm
@@ -72,3 +72,8 @@
   set_infobar_response(password_manager::metrics_util::CLICKED_NEVER);
   return true;
 }
+
+bool IOSChromeSavePasswordInfoBarDelegate::ShouldExpire(
+    const NavigationDetails& details) const {
+  return !details.is_redirect && ConfirmInfoBarDelegate::ShouldExpire(details);
+}