[Mojo Video Capture] Add unit tests for ServiceVideoCaptureDeviceLauncher

content/browser/renderer_host/media/service_video_capture_device_launcher.h

Index: content/browser/renderer_host/media/service_video_capture_device_launcher.h
diff --git a/content/browser/renderer_host/media/service_video_capture_device_launcher.h b/content/browser/renderer_host/media/service_video_capture_device_launcher.h
index 31f1c21d3a12bfca15ce8db011390f0f5394ea37..30fcf3169bfab3e8349d8aa411eaed5cabc7b381 100644
--- a/content/browser/renderer_host/media/service_video_capture_device_launcher.h
+++ b/content/browser/renderer_host/media/service_video_capture_device_launcher.h
@@ -13,7 +13,8 @@ namespace content {
 
 // Implementation of VideoCaptureDeviceLauncher that uses the "video_capture"
 // service.
-class ServiceVideoCaptureDeviceLauncher : public VideoCaptureDeviceLauncher {
+class CONTENT_EXPORT ServiceVideoCaptureDeviceLauncher
+    : public VideoCaptureDeviceLauncher {
  public:
   explicit ServiceVideoCaptureDeviceLauncher(
       video_capture::mojom::DeviceFactoryPtr* device_factory);
@@ -41,13 +42,15 @@ class ServiceVideoCaptureDeviceLauncher : public VideoCaptureDeviceLauncher {
       const media::VideoCaptureParams& params,
       video_capture::mojom::DevicePtr device,
       base::WeakPtr<media::VideoFrameReceiver> receiver,
-      Callbacks* callbacks,
-      base::OnceClosure done_cb,
       video_capture::mojom::DeviceAccessResultCode result_code);
 
+  void OnConnectionLostWhileWaitingForCallback();
+
   video_capture::mojom::DeviceFactoryPtr* const device_factory_;
   State state_;
   base::SequenceChecker sequence_checker_;
+  base::OnceClosure done_cb_;
+  Callbacks* callbacks_;
 };
 
 }  // namespace content