Fix an issue that external protocol in subframes are not handled on Android

chrome/browser/prerender/prerender_browsertest.cc

Index: chrome/browser/prerender/prerender_browsertest.cc
diff --git a/chrome/browser/prerender/prerender_browsertest.cc b/chrome/browser/prerender/prerender_browsertest.cc
index db6e9f60dfef475f41aa1af17c4388cc5517dbf8..f1d5f078725de1e038d0c7e5b892dcc173e875b2 100644
--- a/chrome/browser/prerender/prerender_browsertest.cc
+++ b/chrome/browser/prerender/prerender_browsertest.cc
@@ -1056,7 +1056,8 @@ class NeverRunsExternalProtocolHandlerDelegate
   void BlockRequest() override {}
   void RunExternalProtocolDialog(const GURL& url,
                                  int render_process_host_id,
-                                 int routing_id) override {
+                                 int routing_id,
+                                 ui::PageTransition page_transition) override {
     NOTREACHED();
   }
   void LaunchUrlWithoutSecurityCheck(const GURL& url) override { NOTREACHED(); }