Changing SpawnChild to return a struct.

content/browser/child_process_launcher.cc

Index: content/browser/child_process_launcher.cc
diff --git a/content/browser/child_process_launcher.cc b/content/browser/child_process_launcher.cc
index cf807ba306b3b34bb4051d769067b1cf7ac12770..7db2563aaa1b1521542ce93146c4b99d4b7296ff 100644
--- a/content/browser/child_process_launcher.cc
+++ b/content/browser/child_process_launcher.cc
@@ -85,9 +85,10 @@ void ChildProcessLauncher::Notify(
   if (process_.process.IsValid()) {
     // Set up Mojo IPC to the new process.
     DCHECK(pending_connection);
-    pending_connection->Connect(process_.process.Handle(),
-                                std::move(server_handle),
-                                process_error_callback_);
+    pending_connection->Connect(
+        process_.process.Handle(),
+        mojo::edk::ConnectionParam(std::move(server_handle)),
+        process_error_callback_);
     client_->OnProcessLaunched();
   } else {
     termination_status_ = base::TERMINATION_STATUS_LAUNCH_FAILED;