Revert of Move RtcEventLog object from inside VoiceEngine to Call.

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

Index: webrtc/voice_engine/test/auto_test/standard/codec_test.cc
diff --git a/webrtc/voice_engine/test/auto_test/standard/codec_test.cc b/webrtc/voice_engine/test/auto_test/standard/codec_test.cc
index 5a500af2df4f256b46e2d3dc31fec8d7150ffd87..3a3d83031d3e932661ecef1b4fb15c060c757cae 100644
--- a/webrtc/voice_engine/test/auto_test/standard/codec_test.cc
+++ b/webrtc/voice_engine/test/auto_test/standard/codec_test.cc
@@ -176,6 +176,30 @@
   }
 }
 
+#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) {