Add totalDecodeTime to RTCInboundRTPStreamStats

Pull request to WebRTC stats specification:
https://github.com/w3c/webrtc-stats/pull/450

Bug: webrtc:10775
Change-Id: Id032cb324724329fee284ebc84595b9c39208ab8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144035
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28440}
diff --git a/modules/video_coding/frame_buffer2.cc b/modules/video_coding/frame_buffer2.cc
index d5df3ba..d969946 100644
--- a/modules/video_coding/frame_buffer2.cc
+++ b/modules/video_coding/frame_buffer2.cc
@@ -699,19 +699,18 @@
   if (!stats_callback_)
     return;
 
-  int decode_ms;
   int max_decode_ms;
   int current_delay_ms;
   int target_delay_ms;
   int jitter_buffer_ms;
   int min_playout_delay_ms;
   int render_delay_ms;
-  if (timing_->GetTimings(&decode_ms, &max_decode_ms, &current_delay_ms,
-                          &target_delay_ms, &jitter_buffer_ms,
-                          &min_playout_delay_ms, &render_delay_ms)) {
+  if (timing_->GetTimings(&max_decode_ms, &current_delay_ms, &target_delay_ms,
+                          &jitter_buffer_ms, &min_playout_delay_ms,
+                          &render_delay_ms)) {
     stats_callback_->OnFrameBufferTimingsUpdated(
-        decode_ms, max_decode_ms, current_delay_ms, target_delay_ms,
-        jitter_buffer_ms, min_playout_delay_ms, render_delay_ms);
+        max_decode_ms, current_delay_ms, target_delay_ms, jitter_buffer_ms,
+        min_playout_delay_ms, render_delay_ms);
   }
 }