[Mojo Video Capture] Hook up connection lost events

content/browser/renderer_host/media/video_capture_manager.cc

 // Copyright (c) 2012 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/video_capture_manager.h"
 
 #include <algorithm>
 #include <set>
 #include <utility>
 
@@ skipping 337 matching lines @@
 
   device_start_request_queue_.pop_front();
   ProcessDeviceStartRequestQueue();
 }
 
 void VideoCaptureManager::OnDeviceLaunchAborted() {
   device_start_request_queue_.pop_front();
   ProcessDeviceStartRequestQueue();
 }
 
+void VideoCaptureManager::OnDeviceConnectionLost(
+    VideoCaptureController* controller) {
+  const std::string log_message = base::StringPrintf(
+      "Lost connection to device %d.", controller->serial_id());
+  DLOG(WARNING) << log_message;
+  controller->OnLog(log_message);
+  controller->OnError();
+}
+
 void VideoCaptureManager::ConnectClient(
     media::VideoCaptureSessionId session_id,
     const media::VideoCaptureParams& params,
     VideoCaptureControllerID client_id,
     VideoCaptureControllerEventHandler* client_handler,
     const DoneCB& done_cb) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   DVLOG(1) << __func__ << ", session_id = " << session_id << ", request: "
            << media::VideoCaptureFormat::ToString(params.requested_format);
 
@@ skipping 55 matching lines @@
     }
   }
 
   // Detach client from controller.
   const media::VideoCaptureSessionId session_id =
       controller->RemoveClient(client_id, client_handler);
   DVLOG(1) << __func__ << ", session_id = " << session_id;
 
   // If controller has no more clients, delete controller and device.
   DestroyControllerIfNoClients(controller);
+
+  if (controllers_.empty()) {
+    video_capture_provider_->Uninitialize();
+  }
 }
 
 void VideoCaptureManager::PauseCaptureForClient(
     VideoCaptureController* controller,
     VideoCaptureControllerID client_id,
     VideoCaptureControllerEventHandler* client_handler) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   DCHECK(controller);
   DCHECK(client_handler);
   if (!IsControllerPointerValid(controller))
@@ skipping 408 matching lines @@
       // Session ID is only valid for Screen capture. So we can fake it to
       // resume video capture devices here.
       QueueStartDevice(kFakeSessionId, controller.get(),
                        controller->parameters());
     }
   }
 }
 #endif  // defined(OS_ANDROID)
 
 }  // namespace content