Changing SpawnChild to return a struct.

mojo/edk/embedder/pending_process_connection.cc

Index: mojo/edk/embedder/pending_process_connection.cc
diff --git a/mojo/edk/embedder/pending_process_connection.cc b/mojo/edk/embedder/pending_process_connection.cc
index 8ab58727931f98a93f77735ac6eb37b654ada07b..e1ab251a54639f9bd9001230fe2df03c8e77068c 100644
--- a/mojo/edk/embedder/pending_process_connection.cc
+++ b/mojo/edk/embedder/pending_process_connection.cc
@@ -33,7 +33,7 @@ ScopedMessagePipeHandle PendingProcessConnection::CreateMessagePipe(
 
 void PendingProcessConnection::Connect(
     base::ProcessHandle process,
-    ScopedPlatformHandle channel,
+    ConnectionParam connection_param,
     const ProcessErrorCallback& error_callback) {
   // It's now safe to avoid cleanup in the destructor, as the lifetime of any
   // associated resources is effectively bound to the |channel| passed to
@@ -42,8 +42,8 @@ void PendingProcessConnection::Connect(
   connected_ = true;
 
   DCHECK(internal::g_core);
-  internal::g_core->AddChild(process, std::move(channel), process_token_,
-                             error_callback);
+  internal::g_core->AddChild(process, std::move(connection_param),
+                             process_token_, error_callback);
 }
 
 }  // namespace edk