Expose Ivf logging through the native API

webrtc/modules/video_coding/utility/ivf_file_writer.h

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_MODULES_VIDEO_CODING_UTILITY_IVF_FILE_WRITER_H_
 #define WEBRTC_MODULES_VIDEO_CODING_UTILITY_IVF_FILE_WRITER_H_
 
 #include <memory>
 #include <string>
 
 #include "webrtc/base/constructormagic.h"
+#include "webrtc/base/file.h"
 #include "webrtc/base/timeutils.h"
 #include "webrtc/modules/include/module_common_types.h"
 #include "webrtc/video_frame.h"
-#include "webrtc/system_wrappers/include/file_wrapper.h"
 
 namespace webrtc {
 
 class IvfFileWriter {
  public:
+  // Takes ownership of the file, which will be closed either through
+  // Close or ~IvfFileWriter.
+  static std::unique_ptr<IvfFileWriter> Wrap(rtc::File file);
   ~IvfFileWriter();
 
-  static std::unique_ptr<IvfFileWriter> Open(const std::string& file_name,
-                                             VideoCodecType codec_type);
-  bool WriteFrame(const EncodedImage& encoded_image);
+  bool WriteFrame(const EncodedImage& encoded_image, VideoCodecType codec_type);
   bool Close();
 
  private:
-  IvfFileWriter(const std::string& path_name,
-                std::unique_ptr<FileWrapper> file,
-                VideoCodecType codec_type);
+  explicit IvfFileWriter(rtc::File file);
+
   bool WriteHeader();
-  bool InitFromFirstFrame(const EncodedImage& encoded_image);
+  bool InitFromFirstFrame(const EncodedImage& encoded_image,
+                          VideoCodecType codec_type);
 
-  const VideoCodecType codec_type_;
+  VideoCodecType codec_type_;
   size_t num_frames_;
   uint16_t width_;
   uint16_t height_;
   int64_t last_timestamp_;
   bool using_capture_timestamps_;
   rtc::TimestampWrapAroundHandler wrap_handler_;
-  const std::string file_name_;
-  std::unique_ptr<FileWrapper> file_;
+  rtc::File file_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(IvfFileWriter);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_UTILITY_IVF_FILE_WRITER_H_