Fix the handling of user gestures for external protocol handler dialogs.

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 bf92b25faf1a98b9e4f7ec7ea1f6a3c67be6a213..3bcf822398e05f7727a5e052b77cf5902ee9a01f 100644
--- a/content/public/browser/resource_dispatcher_host_delegate.cc
+++ b/content/public/browser/resource_dispatcher_host_delegate.cc
@@ -48,7 +48,8 @@ ResourceDispatcherHostLoginDelegate*
 
 bool ResourceDispatcherHostDelegate::HandleExternalProtocol(const GURL& url,
                                                             int child_id,
-                                                            int route_id) {
+                                                            int route_id,
+                                                            bool user_gesture) {
   return true;
 }