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

services/video_capture/public/interfaces/service.mojom

-// 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);

[mcasas, 2017/04/27 00:22:15]

This file is very similar to device_factory_provider.mojom
but git diff was confused, try uploading with 
git cl upload ...  --similarity=25 
for example, and see if Rietveld improves.

[chfremer, 2017/04/27 19:52:49]

Agreed that this is confusing. I am using similarity 25 in PatchSet #4 but it
did not improve. My guess is that because the file was modified in PatchSet #1
and then renamed in PatchSet #2, Rietveld shows it as modified but with all
lines deleted. 

-};