[Mojo Video Capture] Hook up connection lost events

content/browser/renderer_host/media/in_process_video_capture_device_launcher.cc

 // Copyright 2017 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.
 
 #include "content/browser/renderer_host/media/in_process_video_capture_device_launcher.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/stringprintf.h"
 #include "content/browser/media/capture/desktop_capture_device_uma_types.h"
 #include "content/browser/media/capture/web_contents_video_capture_device.h"
@@ skipping 54 matching lines @@
 InProcessVideoCaptureDeviceLauncher::~InProcessVideoCaptureDeviceLauncher() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   DCHECK(state_ == State::READY_TO_LAUNCH);
 }
 
 void InProcessVideoCaptureDeviceLauncher::LaunchDeviceAsync(
     const std::string& device_id,
     MediaStreamType stream_type,
     const media::VideoCaptureParams& params,
     base::WeakPtr<media::VideoFrameReceiver> receiver,
+    base::OnceClosure /* connection_lost_cb */,
     Callbacks* callbacks,
     base::OnceClosure done_cb) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   DCHECK(state_ == State::READY_TO_LAUNCH);
 
   const int max_buffers =
       (stream_type == MEDIA_TAB_VIDEO_CAPTURE ? kMaxNumberOfBuffersForTabCapture
                                               : kMaxNumberOfBuffers);
 
   auto device_client = CreateDeviceClient(max_buffers, std::move(receiver));
@@ skipping 206 matching lines @@
   if (!video_capture_device) {
     result_callback.Run(nullptr);
     return;
   }
 
   video_capture_device->AllocateAndStart(params, std::move(device_client));
   result_callback.Run(std::move(video_capture_device));
 }
 
 }  // namespace content