Simplify AudioInputRendererHost IPC interface.

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 41 matching lines @@
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 // CrateLowLatency() ==>        DoCreate()
 //                   AudioManager::MakeAudioInputStream()
 //                        AudioInputStream::Open()
 //                                  .- - - - - - - - - - - - ->   OnError()
 //                                  .------------------------->  OnCreated()
 //                               kCreated
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 // Record() ==>                 DoRecord()
 //                      AudioInputStream::Start()
-//                                  .------------------------->  OnRecording()
 //                              kRecording
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 // Close() ==>                  DoClose()
 //                           state_ = kClosed
 //                        AudioInputStream::Stop()
 //                        AudioInputStream::Close()
 //                          SyncWriter::Close()
 // Closure::Run() <-----------------.
 // (closure-task)
 //
@@ skipping 33 matching lines @@
     // Native input stream reports an error. Exact reason differs between
     // platforms.
     STREAM_ERROR,  // = 3
   };
 
   // An event handler that receives events from the AudioInputController. The
   // following methods are all called on the audio thread.
   class MEDIA_EXPORT EventHandler {
    public:
     virtual void OnCreated(AudioInputController* controller) = 0;
-    virtual void OnRecording(AudioInputController* controller) = 0;
     virtual void OnError(AudioInputController* controller,
                          ErrorCode error_code) = 0;
     virtual void OnData(AudioInputController* controller,
                         const AudioBus* data) = 0;
     virtual void OnLog(AudioInputController* controller,
                        const std::string& message) = 0;
 
    protected:
     virtual ~EventHandler() {}
   };
@@ skipping 269 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_