Unit tests of AudioInputRendererHost. Some cleanups.

media/audio/audio_input_controller.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_
 #define MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 129 matching lines @@
     // Close this synchronous writer.
     virtual void Close() = 0;
   };
 
   // AudioInputController::Create() can use the currently registered Factory
   // to create the AudioInputController. Factory is intended for testing only.
   // |user_input_monitor| is used for typing detection and can be NULL.
   class Factory {
    public:
     virtual AudioInputController* Create(
+        scoped_refptr<base::SingleThreadTaskRunner> task_runner,
+        SyncWriter* sync_writer,
         AudioManager* audio_manager,
         EventHandler* event_handler,
         AudioParameters params,
         UserInputMonitor* user_input_monitor) = 0;
 
    protected:
     virtual ~Factory() {}
   };
 
   // Factory method for creating an AudioInputController.
@@ skipping 65 matching lines @@
   // device-specific implementation.
   void OnData(AudioInputStream* stream,
               const AudioBus* source,
               uint32_t hardware_delay_bytes,
               double volume) override;
   void OnError(AudioInputStream* stream) override;
 
   bool SharedMemoryAndSyncSocketMode() const { return sync_writer_ != NULL; }
 
   // Enable debug recording of audio input.
-  void EnableDebugRecording(const base::FilePath& file_name);
+  virtual void EnableDebugRecording(const base::FilePath& file_name);
 
   // Disable debug recording of audio input.
-  void DisableDebugRecording();
+  virtual void DisableDebugRecording();
 
  protected:
   friend class base::RefCountedThreadSafe<AudioInputController>;
 
   // Used to log the result of capture startup.
   // This was previously logged as a boolean with only the no callback and OK
   // options. The enum order is kept to ensure backwards compatibility.
   // Elements in this enum should not be deleted or rearranged; the only
   // permitted operation is to add new elements before
   // CAPTURE_STARTUP_RESULT_MAX and update CAPTURE_STARTUP_RESULT_MAX.
@@ skipping 145 matching lines @@
   // Used for audio debug recordings. Accessed on audio thread.
   const std::unique_ptr<AudioInputWriter> debug_writer_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AudioInputController);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_