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

content/public/browser/resource_dispatcher_host_delegate.cc

Index: content/public/browser/resource_dispatcher_host_delegate.cc
diff --git a/content/public/browser/resource_dispatcher_host_delegate.cc b/content/public/browser/resource_dispatcher_host_delegate.cc
index b1b69602bdd3b72032e24a53b9e117bd9cc2d719..b1a276080e8d46da742fb5dc59601f672bc66ac6 100644
--- a/content/public/browser/resource_dispatcher_host_delegate.cc
+++ b/content/public/browser/resource_dispatcher_host_delegate.cc
@@ -42,9 +42,11 @@ ResourceDispatcherHostLoginDelegate*
   return nullptr;
 }
 
-bool ResourceDispatcherHostDelegate::HandleExternalProtocol(const GURL& url,
-                                                            int child_id,
-                                                            int route_id) {
+bool ResourceDispatcherHostDelegate::HandleExternalProtocol(
+    const GURL& url,
+    int child_id,
+    int route_id,
+    ui::PageTransition page_transition) {
   return true;
 }