Removed the issue with the leading semicolon in the audio processing module experiment description…

webrtc/modules/audio_processing/echo_cancellation_impl.cc

 /*
  *  Copyright (c) 2012 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 397 matching lines @@
   return delay_agnostic_enabled_;
 }
 
 bool EchoCancellationImpl::is_aec3_enabled() const {
   rtc::CritScope cs(crit_capture_);
   return aec3_enabled_;
 }
 
 std::string EchoCancellationImpl::GetExperimentsDescription() {
   rtc::CritScope cs(crit_capture_);
-  std::string description = (aec3_enabled_ ? "AEC3" : "");
+  std::string description = (aec3_enabled_ ? "AEC3;" : "");
   if (refined_adaptive_filter_enabled_) {
-    description += ";RefinedAdaptiveFilter";
+    description += "RefinedAdaptiveFilter;";
   }
   return description;
 }
 
 bool EchoCancellationImpl::is_refined_adaptive_filter_enabled() const {
   rtc::CritScope cs(crit_capture_);
   return refined_adaptive_filter_enabled_;
 }
 
 bool EchoCancellationImpl::is_extended_filter_enabled() const {
@@ skipping 147 matching lines @@
   return error;
 }
 
 size_t EchoCancellationImpl::NumCancellersRequired() const {
   RTC_DCHECK(stream_properties_);
   return stream_properties_->num_output_channels *
          stream_properties_->num_reverse_channels;
 }
 
 }  // namespace webrtc