fix external protocol handling for OOPIFs

chrome/browser/prerender/prerender_test_utils.cc

Index: chrome/browser/prerender/prerender_test_utils.cc
diff --git a/chrome/browser/prerender/prerender_test_utils.cc b/chrome/browser/prerender/prerender_test_utils.cc
index c975bcf0b53fcc9a44e92edf090af1f1238e3976..36cd7d4e99ff68a5ff6bc2ab424e9ff5b3d4b6ee 100644
--- a/chrome/browser/prerender/prerender_test_utils.cc
+++ b/chrome/browser/prerender/prerender_test_utils.cc
@@ -240,7 +240,11 @@ class NeverRunsExternalProtocolHandlerDelegate
     NOTREACHED();
   }
 
-  void LaunchUrlWithoutSecurityCheck(const GURL& url) override { NOTREACHED(); }
+  void LaunchUrlWithoutSecurityCheck(
+      const GURL& url,
+      content::WebContents* web_contents) override {
+    NOTREACHED();
+  }
 
   void FinishedProcessingCheck() override { NOTREACHED(); }
 };