Hooked up RtcEventLog. It lives in Voice Engine and pointers are propagated to ACM and Call.

webrtc/voice_engine/test/auto_test/standard/codec_test.cc

 /*
  *  Copyright (c) 2011 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 <stdio.h>
+#include <string>
+
+#include "webrtc/test/test_suite.h"
+#include "webrtc/test/testsupport/fileutils.h"
 #include "webrtc/voice_engine/test/auto_test/fixtures/after_streaming_fixture.h"
 #include "webrtc/voice_engine/voice_engine_defines.h"
+#include "webrtc/video/rtc_event_log.h"
 
 class CodecTest : public AfterStreamingFixture {
  protected:
   void SetUp() {
     memset(&codec_instance_, 0, sizeof(codec_instance_));
   }
 
   void SetArbitrarySendCodec() {
     // Just grab the first codec.
     EXPECT_EQ(0, voe_codec_->GetCodec(0, codec_instance_));
@@ skipping 152 matching lines @@
     voe_codec_->GetCodec(i, codec_instance_);
     if (!_stricmp("opus", codec_instance_.plname)) {
       continue;
     }
     voe_codec_->SetSendCodec(channel_, codec_instance_);
     EXPECT_EQ(-1, voe_codec_->SetOpusDtx(channel_, false));
     EXPECT_EQ(-1, voe_codec_->SetOpusDtx(channel_, true));
   }
 }
 
+#ifdef ENABLE_RTC_EVENT_LOG
+TEST_F(CodecTest, RtcEventLogIntegrationTest) {
+  webrtc::RtcEventLog* event_log = voe_codec_->GetEventLog();
+  ASSERT_TRUE(event_log);
+
+  // Find the name of the current test, in order to use it as a temporary
+  // filename.
+  auto test_info = ::testing::UnitTest::GetInstance()->current_test_info();
+  const std::string temp_filename = webrtc::test::OutputPath() +
+                                    test_info->test_case_name() +
+                                    test_info->name();
+  // Create a log file.
+  event_log->StartLogging(temp_filename, 1000);
+  event_log->StopLogging();
+
+  // Check if the file has been created.
+  FILE* event_file = fopen(temp_filename.c_str(), "r");
+  ASSERT_TRUE(event_file);
+  fclose(event_file);
+  // Remove the temporary file.
+  remove(temp_filename.c_str());
+}
+#endif  // ENABLE_RTC_EVENT_LOG
+
 // TODO(xians, phoglund): Re-enable when issue 372 is resolved.
 TEST_F(CodecTest, DISABLED_ManualVerifySendCodecsForAllPacketSizes) {
   for (int i = 0; i < voe_codec_->NumOfCodecs(); ++i) {
     voe_codec_->GetCodec(i, codec_instance_);
     if (IsNotViableSendCodec(codec_instance_.plname)) {
       TEST_LOG("Skipping %s.\n", codec_instance_.plname);
       continue;
     }
     EXPECT_NE(-1, codec_instance_.pltype) <<
         "The codec database should suggest a payload type.";
@@ skipping 17 matching lines @@
         TEST_LOG("%d ", packet_size);
         TEST_LOG_FLUSH;
         at_least_one_succeeded = true;
         Sleep(CODEC_TEST_TIME);
       }
     }
     TEST_LOG("\n");
     EXPECT_TRUE(at_least_one_succeeded);
   }
 }