Pass camera facing to WebKit

media/capture/video/linux/camera_facing_chromeos.h

 // Copyright 2016 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.
 
 #ifndef MEDIA_CAPTURE_VIDEO_LINUX_CAMERA_FACING_CHROMEOS_H_
 #define MEDIA_CAPTURE_VIDEO_LINUX_CAMERA_FACING_CHROMEOS_H_
 
 #include <stddef.h>
 
 #include <string>
 #include <unordered_map>
 
 #include <base/strings/string_piece.h>
+#include "media/base/video_facing.h"
 #include "media/capture/capture_export.h"
 
 namespace media {
 
 // CameraFacingChromeOS reads the file /etc/camera/camera_characteristics.conf
 // and populates |camera_id_to_facing_|, |usb_id_to_camera_id_| and
 // |model_id_to_camera_id_|.
 //
 // Each line in the config file can be:
 // 1. Empty line
@@ skipping 18 matching lines @@
 //  camera0.module0.lens_info_available_focal_lengths=1.64
 //  camera0.module0.lens_info_minimum_focus_distance=0.22
 //  camera0.module0.lens_info_optimal_focus_distance=0.5
 //  camera0.module0.vertical_view_angle=41.6
 //  camera0.module1.usb_vid_pid=89ab:cdef
 //  camera0.module1.lens_info_available_focal_lengths=1.69,2
 //  camera1.lens_facing=1
 //  camera1.sensor_orientation=180
 class CAPTURE_EXPORT CameraFacingChromeOS {
  public:
-  enum LensFacing { FRONT = 0, BACK = 1 };
-
   CameraFacingChromeOS();
   CAPTURE_EXPORT CameraFacingChromeOS(const std::string& config_file_path);
   CAPTURE_EXPORT ~CameraFacingChromeOS();
 
   // Get camera facing by specifying USB vid and pid and device path. |model_id|
   // should be formatted as "vid:pid". |device_id| is something like
   // "/dev/video2". It first tries to match usb path, obtained from |device_id|.
   // If fails, |model_id| is then used.
-  // Returns LensFacing::FRONT or LensFacing::BACK.
-  // Default is LensFacing::FRONT.
-  CAPTURE_EXPORT LensFacing GetCameraFacing(const std::string& device_id,
-                                            const std::string& model_id) const;
+  CAPTURE_EXPORT VideoFacingMode
+  GetCameraFacing(const std::string& device_id,
+                  const std::string& model_id) const;
 
-  static const LensFacing kLensFacingDefault = LensFacing::FRONT;
+  static const VideoFacingMode kLensFacingDefault =
+      VideoFacingMode::MEDIA_VIDEO_FACING_NONE;
 
  private:
   std::string GetUsbId(const std::string& device_id) const;
   // Read file content and populate |camera_id_to_facing_|,
   // |usb_id_to_camera_id_| and |model_id_to_camera_id_|.
   void InitializeDeviceInfo(const std::string& config_file_path);
 
-  std::unordered_map<int, LensFacing> camera_id_to_facing_;
+  std::unordered_map<int, VideoFacingMode> camera_id_to_facing_;
   std::unordered_map<std::string, int> usb_id_to_camera_id_;
   std::unordered_map<std::string, int> model_id_to_camera_id_;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_CAPTURE_VIDEO_LINUX_CAMERA_FACING_CHROMEOS_H_