Add received interframe delay UMA metrics

webrtc/video/end_to_end_tests.cc

 /*
  *  Copyright (c) 2013 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.
  */
 #include <algorithm>
@@ skipping 2685 matching lines @@
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.DecodedFramesPerSecond"));
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.RenderFramesPerSecond"));
 
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.JitterBufferDelayInMs"));
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.TargetDelayInMs"));
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.CurrentDelayInMs"));
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.OnewayDelayInMs"));
 
   EXPECT_EQ(1, metrics::NumSamples(video_prefix + "EndToEndDelayInMs"));
   EXPECT_EQ(1, metrics::NumSamples(video_prefix + "EndToEndDelayMaxInMs"));
+  EXPECT_EQ(1, metrics::NumSamples(video_prefix + "InterframeDelayInMs"));
+  EXPECT_EQ(1, metrics::NumSamples(video_prefix + "InterframeDelayMaxInMs"));
+
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.RenderSqrtPixelsPerSecond"));
 
   EXPECT_EQ(1, metrics::NumSamples(video_prefix + "EncodeTimeInMs"));
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.DecodeTimeInMs"));
 
   EXPECT_EQ(1, metrics::NumSamples(video_prefix + "NumberOfPauseEvents"));
   EXPECT_EQ(1, metrics::NumSamples(video_prefix + "PausedTimeInPercent"));
 
   EXPECT_EQ(1, metrics::NumSamples(video_prefix + "BitrateSentInKbps"));
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.BitrateReceivedInKbps"));
@@ skipping 138 matching lines @@
   sender_call_.reset();
   receiver_call_.reset();
 
   // Verify that stats have been updated for both screenshare and video.
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.EndToEndDelayInMs"));
   EXPECT_EQ(1,
             metrics::NumSamples("WebRTC.Video.Screenshare.EndToEndDelayInMs"));
   EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.EndToEndDelayMaxInMs"));
   EXPECT_EQ(
       1, metrics::NumSamples("WebRTC.Video.Screenshare.EndToEndDelayMaxInMs"));
+  EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.InterframeDelayInMs"));
+  EXPECT_EQ(1,
+            metrics::NumSamples(
+                "WebRTC.Video.Screenshare.InterframeDelayInMs"));
+  EXPECT_EQ(1, metrics::NumSamples("WebRTC.Video.InterframeDelayMaxInMs"));
+  EXPECT_EQ(1,
+            metrics::NumSamples(
+                "WebRTC.Video.Screenshare.InterframeDelayMaxInMs"));
 }
 
 TEST_F(EndToEndTest, VerifyHistogramStatsWithRtx) {
   const bool kEnabledRtx = true;
   const bool kEnabledRed = false;
   const bool kScreenshare = false;
   VerifyHistogramStats(kEnabledRtx, kEnabledRed, kScreenshare);
 }
 
 TEST_F(EndToEndTest, VerifyHistogramStatsWithRed) {
@@ skipping 1817 matching lines @@
     std::unique_ptr<VideoEncoder> encoder_;
     std::unique_ptr<VideoDecoder> decoder_;
     rtc::CriticalSection crit_;
     int recorded_frames_ GUARDED_BY(crit_);
   } test(this);
 
   RunBaseTest(&test);
 }
 
 }  // namespace webrtc