Make AudioDebugFileWriter create its own file worker thread.

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 145 matching lines @@
 
   // Sets the factory used by the static method Create(). AudioInputController
   // does not take ownership of |factory|. A value of NULL results in an
   // AudioInputController being created directly.
   static void set_factory_for_testing(Factory* factory) { factory_ = factory; }
   AudioInputStream* stream_for_testing() { return stream_; }
 
   // The audio device will be created on the audio thread, and when that is
   // done, the event handler will receive an OnCreated() call from that same
   // thread. |user_input_monitor| is used for typing detection and can be NULL.
-  // |file_task_runner| is used for debug recordings.
   // TODO(grunell): Move handling of debug recording to AudioManager.
   static scoped_refptr<AudioInputController> Create(
       AudioManager* audio_manager,
       EventHandler* event_handler,
       SyncWriter* sync_writer,
       UserInputMonitor* user_input_monitor,
       const AudioParameters& params,
       const std::string& device_id,
       // External synchronous writer for audio controller.
-      bool agc_is_enabled,
-      scoped_refptr<base::SingleThreadTaskRunner> file_task_runner);
+      bool agc_is_enabled);
 
   // Factory method for creating an AudioInputController with an existing
   // |stream|. The stream will be opened on the audio thread, and when that is
   // done, the event  handler will receive an OnCreated() call from that same
   // thread. |user_input_monitor| is used for typing detection and can be NULL.
-  // |file_task_runner| and |params| are used for debug recordings.
+  // |params| is used for debug recordings.
   static scoped_refptr<AudioInputController> CreateForStream(
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
       EventHandler* event_handler,
       AudioInputStream* stream,
       // External synchronous writer for audio controller.
       SyncWriter* sync_writer,
       UserInputMonitor* user_input_monitor,
-      scoped_refptr<base::SingleThreadTaskRunner> file_task_runner,
       const AudioParameters& params);
 
   // Starts recording using the created audio input stream.
   // This method is called on the creator thread.
   virtual void Record();
 
   // Closes the audio input stream. The state is changed and the resources
   // are freed on the audio thread. |closed_task| is then executed on the thread
   // that called Close().
   // Callbacks (EventHandler and SyncWriter) must exist until |closed_task|
@@ skipping 49 matching lines @@
   //            SILENCE_STATE_NO_MEASUREMENT
   enum SilenceState {
     SILENCE_STATE_NO_MEASUREMENT = 0,
     SILENCE_STATE_ONLY_AUDIO = 1,
     SILENCE_STATE_ONLY_SILENCE = 2,
     SILENCE_STATE_AUDIO_AND_SILENCE = 3,
     SILENCE_STATE_MAX = SILENCE_STATE_AUDIO_AND_SILENCE
   };
 #endif
 
-  AudioInputController(
-      scoped_refptr<base::SingleThreadTaskRunner> task_runner,
-      EventHandler* handler,
-      SyncWriter* sync_writer,
-      UserInputMonitor* user_input_monitor,
-      const AudioParameters& params,
-      StreamType type,
-      scoped_refptr<base::SingleThreadTaskRunner> file_task_runner);
+  AudioInputController(scoped_refptr<base::SingleThreadTaskRunner> task_runner,
+                       EventHandler* handler,
+                       SyncWriter* sync_writer,
+                       UserInputMonitor* user_input_monitor,
+                       const AudioParameters& params,
+                       StreamType type);
   virtual ~AudioInputController();
 
   const scoped_refptr<base::SingleThreadTaskRunner>& GetTaskRunnerForTesting()
       const {
     return task_runner_;
   }
 
   EventHandler* GetHandlerForTesting() const { return handler_; }
 
  private:
@@ skipping 120 matching lines @@
   // The weak_ptr_factory_ and all outstanding weak pointers, are invalidated
   // at the end of DoClose.
   base::WeakPtrFactory<AudioInputController> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioInputController);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_