Expose `jitterBufferEmittedCount` in addition to the existing `jitterBufferDelay` for `getStats()`.

NetEq currently only passes `jitterBufferDelay` to `getStats()`. We need its paired `jitterBufferEmittedCount` denominator stat for the calculations to be accurate.

Bug: webrtc:10192
Change-Id: I655aea629026ce9101409c2e0f18c2fa57a1c3ab
Reviewed-on: https://webrtc-review.googlesource.com/c/117320
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Commit-Queue: Chen Xing <chxg@google.com>
Cr-Commit-Position: refs/heads/master@{#26276}
diff --git a/audio/audio_receive_stream_unittest.cc b/audio/audio_receive_stream_unittest.cc
index 25ca528..cc1e9d4 100644
--- a/audio/audio_receive_stream_unittest.cc
+++ b/audio/audio_receive_stream_unittest.cc
@@ -67,8 +67,8 @@
 const std::pair<int, SdpAudioFormat> kReceiveCodec =
     {123, {"codec_name_recv", 96000, 0}};
 const NetworkStatistics kNetworkStats = {
-    123, 456, false, 789012, 3456, 123, 456, 0,  {}, 789, 12,
-    345, 678, 901,   0,      -1,   -1,  -1,  -1, -1, 0};
+    123, 456, false, 789012, 3456, 123, 456, 789, 0,  {}, 789,
+    12,  345, 678,   901,    0,    -1,  -1,  -1,  -1, -1, 0};
 const AudioDecodingCallStats kAudioDecodeStats = MakeAudioDecodeStatsForTest();
 
 struct ConfigHelper {
@@ -288,6 +288,8 @@
   EXPECT_EQ(static_cast<double>(kNetworkStats.jitterBufferDelayMs) /
                 static_cast<double>(rtc::kNumMillisecsPerSec),
             stats.jitter_buffer_delay_seconds);
+  EXPECT_EQ(kNetworkStats.jitterBufferEmittedCount,
+            stats.jitter_buffer_emitted_count);
   EXPECT_EQ(Q14ToFloat(kNetworkStats.currentExpandRate), stats.expand_rate);
   EXPECT_EQ(Q14ToFloat(kNetworkStats.currentSpeechExpandRate),
             stats.speech_expand_rate);