[Mojo Video Capture] Move conversions between mojom and media types to a separate file

services/video_capture/video_capture_device_proxy_impl.h

Index: services/video_capture/video_capture_device_proxy_impl.h
diff --git a/services/video_capture/video_capture_device_proxy_impl.h b/services/video_capture/video_capture_device_proxy_impl.h
index 3323a20f101604f65104667776a483233e0f6679..a2233f3053e0d9634924f45b08c30e2b8ce79ed9 100644
--- a/services/video_capture/video_capture_device_proxy_impl.h
+++ b/services/video_capture/video_capture_device_proxy_impl.h
@@ -28,20 +28,6 @@ class VideoCaptureDeviceProxyImpl : public mojom::VideoCaptureDeviceProxy {
 
   void OnClientConnectionErrorOrClose();
 
-  // TODO(chfremer): Consider using Mojo type mapping instead of conversion
-  // methods.
-  // https://crbug.com/642387
-  static media::VideoCaptureFormat ConvertFromMojoToMedia(
-      mojom::VideoCaptureFormatPtr format);
-  static media::VideoPixelFormat ConvertFromMojoToMedia(
-      media::mojom::VideoFormat format);
-  static media::VideoPixelStorage ConvertFromMojoToMedia(
-      mojom::VideoPixelStorage storage);
-  static media::ResolutionChangePolicy ConvertFromMojoToMedia(
-      mojom::ResolutionChangePolicy policy);
-  static media::PowerLineFrequency ConvertFromMojoToMedia(
-      mojom::PowerLineFrequency frequency);
-
  private:
   std::unique_ptr<media::VideoCaptureDevice> device_;
   bool device_running_ = false;