Revert of [Mojo Video Capture] Adapt video_capture service to refactored video capture stack

services/video_capture/service_impl.cc

Index: services/video_capture/service_impl.cc
diff --git a/services/video_capture/service_impl.cc b/services/video_capture/service_impl.cc
index cb1b98d9578e46bc5bbf4a423bca9f6b24b71a80..bd3d05017daf7284a88fa24e79f4bd23b9ae6352 100644
--- a/services/video_capture/service_impl.cc
+++ b/services/video_capture/service_impl.cc
@@ -10,7 +10,6 @@
 #include "media/capture/video/video_capture_buffer_pool.h"
 #include "media/capture/video/video_capture_buffer_tracker.h"
 #include "media/capture/video/video_capture_jpeg_decoder.h"
-#include "media/capture/video/video_capture_system_impl.h"
 #include "services/service_manager/public/cpp/service_info.h"
 #include "services/video_capture/device_factory_media_to_mojo_adapter.h"
 
@@ -66,23 +65,18 @@
   std::unique_ptr<media::VideoCaptureDeviceFactory> media_device_factory =
       media::VideoCaptureDeviceFactory::CreateFactory(
           base::MessageLoop::current()->task_runner());
-  auto video_capture_system = base::MakeUnique<media::VideoCaptureSystemImpl>(
-      std::move(media_device_factory));
 
   device_factory_ = base::MakeUnique<DeviceFactoryMediaToMojoAdapter>(
-      std::move(video_capture_system), base::Bind(CreateJpegDecoder));
+      std::move(media_device_factory), base::Bind(CreateJpegDecoder));
 }
 
 void ServiceImpl::LazyInitializeFakeDeviceFactory() {
   if (fake_device_factory_)
     return;
 
-  auto factory = base::MakeUnique<media::FakeVideoCaptureDeviceFactory>();
-  auto video_capture_system =
-      base::MakeUnique<media::VideoCaptureSystemImpl>(std::move(factory));
-
   fake_device_factory_ = base::MakeUnique<DeviceFactoryMediaToMojoAdapter>(
-      std::move(video_capture_system), base::Bind(&CreateJpegDecoder));
+      base::MakeUnique<media::FakeVideoCaptureDeviceFactory>(),
+      base::Bind(&CreateJpegDecoder));
 }
 
 }  // namespace video_capture