Expose Ivf logging through the native API

webrtc/modules/video_coding/utility/ivf_file_writer.h

Index: webrtc/modules/video_coding/utility/ivf_file_writer.h
diff --git a/webrtc/modules/video_coding/utility/ivf_file_writer.h b/webrtc/modules/video_coding/utility/ivf_file_writer.h
index 25d68a2803498efd562208ac7ca0b86f2bf4ffbf..8525b1035674a6d7666569b834cdc67c48e6555c 100644
--- a/webrtc/modules/video_coding/utility/ivf_file_writer.h
+++ b/webrtc/modules/video_coding/utility/ivf_file_writer.h
@@ -15,38 +15,38 @@
 #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);
 };