Added a new echo likelihood stat that reports the maximum value from a previous time period.

webrtc/api/statscollector_unittest.cc

 /*
  *  Copyright 2014 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.
  */
 
@@ skipping 396 matching lines @@
   EXPECT_TRUE(GetValue(
       report, StatsReport::kStatsValueNameEchoReturnLossEnhancement,
       &value_in_report));
   EXPECT_EQ(rtc::ToString<int>(sinfo.echo_return_loss_enhancement),
             value_in_report);
   EXPECT_TRUE(GetValue(report,
                        StatsReport::kStatsValueNameResidualEchoLikelihood,
                        &value_in_report));
   EXPECT_EQ(rtc::ToString<float>(sinfo.residual_echo_likelihood),
             value_in_report);
+  EXPECT_TRUE(GetValue(
+      report, StatsReport::kStatsValueNameResidualEchoLikelihoodRecentMax,
+      &value_in_report));
+  EXPECT_EQ(rtc::ToString<float>(sinfo.residual_echo_likelihood_recent_max),
+            value_in_report);
   EXPECT_TRUE(GetValue(report, StatsReport::kStatsValueNameAudioInputLevel,
                        &value_in_report));
   EXPECT_EQ(rtc::ToString<int>(sinfo.audio_level), value_in_report);
   EXPECT_TRUE(GetValue(
       report, StatsReport::kStatsValueNameTypingNoiseState, &value_in_report));
   std::string typing_detected = sinfo.typing_noise_detected ? "true" : "false";
   EXPECT_EQ(typing_detected, value_in_report);
 }
 
 // Helper methods to avoid duplication of code.
@@ skipping 1590 matching lines @@
   EXPECT_CALL(*media_channel, GetStats(_))
       .WillOnce(DoAll(SetArgPointee<0>(stats_read), Return(true)));
   stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
   stats.GetStats(NULL, &reports);
   EXPECT_EQ(rtc::ToString(video_receiver_info.frames_decoded),
             ExtractSsrcStatsValue(reports,
                                   StatsReport::kStatsValueNameFramesDecoded));
 }
 
 }  // namespace webrtc