Added functionality for simulating custom orders of the stream API calls in audioproc_f

webrtc/modules/audio_processing/test/wav_based_simulator.h

 /*
  *  Copyright (c) 2016 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 22 matching lines @@
   enum SimulationEventType {
     kProcessStream,
     kProcessReverseStream,
   };
 
   void Initialize();
   bool HandleProcessStreamCall();
   bool HandleProcessReverseStreamCall();
   void PrepareProcessStreamCall();
   void PrepareReverseProcessStreamCall();
-  std::vector<SimulationEventType> GetDefaultEventChain() const;
+  static std::vector<SimulationEventType> GetDefaultEventChain();
+  static std::vector<SimulationEventType> GetCustomEventChain(
+      const std::string& filename);
 
   std::vector<SimulationEventType> call_chain_;
   int last_specified_microphone_level_ = 100;
 
   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(WavBasedSimulator);
 };
 
 }  // namespace test
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_TEST_WAV_BASED_SIMULATOR_H_