Introduce VideoFrame::id to keep track of frames inside application.

Also switch webrtc code from deprecated constructors to the builder API.

Change-Id: Ie325bf1e9b4ff1e413fef3431ced8ed9ff725107
Bug: webrtc:10138
Reviewed-on: https://webrtc-review.googlesource.com/c/114422
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26132}

modules/video_coding/video_sender.cc

@@ -325,10 +325,13 @@ int32_t VideoSender::AddVideoFrame(
       RTC_LOG(LS_ERROR) << "Frame conversion failed, dropping frame.";
       return VCM_PARAMETER_ERROR;
     }
-    converted_frame = VideoFrame(converted_buffer,
-                                 converted_frame.timestamp(),
-                                 converted_frame.render_time_ms(),
-                                 converted_frame.rotation());
+    converted_frame = VideoFrame::Builder()
+                          .set_video_frame_buffer(converted_buffer)
+                          .set_timestamp_rtp(converted_frame.timestamp())
+                          .set_timestamp_ms(converted_frame.render_time_ms())
+                          .set_rotation(converted_frame.rotation())
+                          .set_id(converted_frame.id())
+                          .build();
   }
   int32_t ret =
       _encoder->Encode(converted_frame, codecSpecificInfo, next_frame_types);