Added a protobuf field for the audio processing module to store the status of experiments

webrtc/modules/audio_processing/test/debug_dump_test.cc

 /*
  *  Copyright (c) 2015 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 323 matching lines @@
   generator.Process(100);
 
   EchoCancellation* aec = generator.apm()->echo_cancellation();
   EXPECT_EQ(AudioProcessing::kNoError, aec->Enable(!aec->is_enabled()));
 
   generator.Process(100);
   generator.StopRecording();
   VerifyDebugDump(generator.dump_file_name());
 }
 
+TEST_F(DebugDumpTest, VerifyAec3ExperimentalString) {
+  Config config;
+  config.Set<EchoCanceller3>(new EchoCanceller3(true));
+  DebugDumpGenerator generator(config);
+  generator.StartRecording();
+  generator.Process(100);
+  generator.StopRecording();
+
+  DebugDumpReplayer debug_dump_replayer_;
+
+  ASSERT_TRUE(debug_dump_replayer_.SetDumpFile(generator.dump_file_name()));
+
+  while (const rtc::Optional<audioproc::Event> event =
+             debug_dump_replayer_.GetNextEvent()) {
+    debug_dump_replayer_.RunNextEvent();
+    if (event->type() == audioproc::Event::CONFIG) {
+      const audioproc::Config* msg = &event->config();
+      EXPECT_TRUE(msg->has_experiments_description());
+      EXPECT_NE(std::string::npos, msg->experiments_description().find("AEC3"));
+    }
+  }
+}
+
+TEST_F(DebugDumpTest, VerifyEmptyExperimentalString) {
+  Config config;
+  DebugDumpGenerator generator(config);
+  generator.StartRecording();
+  generator.Process(100);
+  generator.StopRecording();
+
+  DebugDumpReplayer debug_dump_replayer_;
+
+  ASSERT_TRUE(debug_dump_replayer_.SetDumpFile(generator.dump_file_name()));
+
+  while (const rtc::Optional<audioproc::Event> event =
+             debug_dump_replayer_.GetNextEvent()) {
+    debug_dump_replayer_.RunNextEvent();
+    if (event->type() == audioproc::Event::CONFIG) {
+      const audioproc::Config* msg = &event->config();
+      EXPECT_TRUE(msg->has_experiments_description());
+      EXPECT_EQ(0u, msg->experiments_description().size());
+    }
+  }
+}
+
 TEST_F(DebugDumpTest, ToggleAecLevel) {
   Config config;
   DebugDumpGenerator generator(config);
   EchoCancellation* aec = generator.apm()->echo_cancellation();
   EXPECT_EQ(AudioProcessing::kNoError, aec->Enable(true));
   EXPECT_EQ(AudioProcessing::kNoError,
             aec->set_suppression_level(EchoCancellation::kLowSuppression));
   generator.StartRecording();
   generator.Process(100);
 
@@ skipping 43 matching lines @@
   config.Set<ExperimentalNs>(new ExperimentalNs(true));
   DebugDumpGenerator generator(config);
   generator.StartRecording();
   generator.Process(100);
   generator.StopRecording();
   VerifyDebugDump(generator.dump_file_name());
 }
 
 }  // namespace test
 }  // namespace webrtc