[Mojo Video Capture] Stop service when last client disconnects.

services/video_capture/public/interfaces/service.mojom

Index: services/video_capture/public/interfaces/service.mojom
diff --git a/services/video_capture/public/interfaces/service.mojom b/services/video_capture/public/interfaces/service.mojom
deleted file mode 100644
index a08ae596bb4164dc28188c68364c1271df594e8f..0000000000000000000000000000000000000000
--- a/services/video_capture/public/interfaces/service.mojom
+++ /dev/null
@@ -1,20 +0,0 @@
-// 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 video_capture.mojom;
-
-import "services/video_capture/public/interfaces/device_factory.mojom";
-
-// Production entry point to the Video Capture Service API.
-// The service hosts two DeviceFactories. The "regular" factory
-// provides access to the capture devices connected to the system. The "fake"
-// factory provides access to a single fake device that generates test frames.
-// Note: Despite the name, the fake factory is a production feature that is
-// shipped in release builds of Chromium. It is useful for Web Developers who
-// want to test video capture code without having to use an actual capture
-// device.
-interface Service {
-  ConnectToDeviceFactory(DeviceFactory& request);
-  ConnectToFakeDeviceFactory(DeviceFactory& request);
-};