ui: Cleanup class/struct forward declarations

services/service_manager/public/interfaces/service_control.mojom

Index: services/service_manager/public/interfaces/service_control.mojom
diff --git a/services/service_manager/public/interfaces/service_control.mojom b/services/service_manager/public/interfaces/service_control.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..f80b81c17b98984309cb177839ecbc27fc407f7a
--- /dev/null
+++ b/services/service_manager/public/interfaces/service_control.mojom
@@ -0,0 +1,16 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module service_manager.mojom;
+
+// The client interface a Service uses to issue requests to the Service Manager.
+interface ServiceControl {
+  // Informs the Service Manager that the Service is ready to terminate. If
+  // the Service Manager needs the Service to stay alive - for example, if
+  // there's an in-flight OnConnect request which hasn't been acked yet - this
+  // request is ignored. Otherwise the Service pipe will soon be severed by
+  // the Service Manager, signaling that shutdown may proceed at the service's
+  // own discretion.
+  RequestQuit();
+};