| // Copyright 2020 The Chromium Authors | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #include "components/webrtc/media_stream_device_enumerator_impl.h" | 
 |  | 
 | #include <memory> | 
 | #include <utility> | 
 | #include <vector> | 
 |  | 
 | #include "base/functional/bind.h" | 
 | #include "content/public/browser/browser_context.h" | 
 | #include "content/public/browser/browser_thread.h" | 
 | #include "content/public/browser/media_capture_devices.h" | 
 | #include "third_party/blink/public/mojom/mediastream/media_stream.mojom.h" | 
 |  | 
 | using blink::MediaStreamDevices; | 
 | using content::BrowserThread; | 
 | using content::MediaCaptureDevices; | 
 |  | 
 | namespace webrtc { | 
 |  | 
 | const MediaStreamDevices& | 
 | MediaStreamDeviceEnumeratorImpl::GetAudioCaptureDevices() const { | 
 |   return MediaCaptureDevices::GetInstance()->GetAudioCaptureDevices(); | 
 | } | 
 |  | 
 | const MediaStreamDevices& | 
 | MediaStreamDeviceEnumeratorImpl::GetVideoCaptureDevices() const { | 
 |   return MediaCaptureDevices::GetInstance()->GetVideoCaptureDevices(); | 
 | } | 
 |  | 
 | const std::optional<blink::MediaStreamDevice> | 
 | MediaStreamDeviceEnumeratorImpl::GetPreferredAudioDeviceForBrowserContext( | 
 |     content::BrowserContext* context, | 
 |     const std::vector<std::string>& eligible_device_ids) const { | 
 |   NOTIMPLEMENTED(); | 
 |   return std::nullopt; | 
 | } | 
 |  | 
 | const std::optional<blink::MediaStreamDevice> | 
 | MediaStreamDeviceEnumeratorImpl::GetPreferredVideoDeviceForBrowserContext( | 
 |     content::BrowserContext* context, | 
 |     const std::vector<std::string>& eligible_device_ids) const { | 
 |   NOTIMPLEMENTED(); | 
 |   return std::nullopt; | 
 | } | 
 |  | 
 | }  // namespace webrtc |