Remove the AudioManager singleton.

content/browser/speech/speech_recognizer.h

 // Copyright (c) 2011 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 CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_
 #define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_
 
 #include <list>
 #include <string>
 #include <utility>
@@ skipping 68 matching lines @@
 
    protected:
     virtual ~Delegate() {}
   };
 
   SpeechRecognizer(Delegate* delegate,
                    int caller_id,
                    const std::string& language,
                    const std::string& grammar,
                    net::URLRequestContextGetter* context_getter,
+                   AudioManager* audio_manager,
                    bool filter_profanities,
                    const std::string& hardware_info,
                    const std::string& origin_url);
 
   virtual ~SpeechRecognizer();
 
   // Starts audio recording and does recognition after recording ends. The same
   // SpeechRecognizer instance can be used multiple times for speech recognition
   // though each recognition request can be made only after the previous one
   // completes (i.e. after receiving Delegate::DidCompleteRecognition).
@@ skipping 12 matching lines @@
   virtual void OnError(media::AudioInputController* controller,
                        int error_code) OVERRIDE;
   virtual void OnData(media::AudioInputController* controller,
                       const uint8* data,
                       uint32 size) OVERRIDE;
 
   // SpeechRecognitionRequest::Delegate methods.
   virtual void SetRecognitionResult(
       const content::SpeechInputResult& result) OVERRIDE;
 
+  AudioManager* audio_manager() const { return audio_manager_.get(); }
+
   static const int kAudioSampleRate;
   static const int kAudioPacketIntervalMs;  // Duration of each audio packet.
   static const ChannelLayout kChannelLayout;
   static const int kNumBitsPerAudioSample;
   static const int kNoSpeechTimeoutSec;
   static const int kEndpointerEstimationTimeMs;
 
  private:
   void InformErrorAndCancelRecognition(content::SpeechInputError error);
   void SendRecordedAudioToServer();
 
   void HandleOnError(int error_code);  // Handles OnError in the IO thread.
 
   // Handles OnData in the IO thread. Takes ownership of |data|.
   void HandleOnData(std::string* data);
 
   Delegate* delegate_;
   int caller_id_;
   std::string language_;
   std::string grammar_;
   bool filter_profanities_;
   std::string hardware_info_;
   std::string origin_url_;
 
   scoped_ptr<SpeechRecognitionRequest> request_;
   scoped_refptr<media::AudioInputController> audio_controller_;
   scoped_refptr<net::URLRequestContextGetter> context_getter_;
+  scoped_refptr<AudioManager> audio_manager_;
   AudioEncoder::Codec codec_;
   scoped_ptr<AudioEncoder> encoder_;
   Endpointer endpointer_;
   int num_samples_recorded_;
   float audio_level_;
 
   DISALLOW_COPY_AND_ASSIGN(SpeechRecognizer);
 };
 
 // This typedef is to workaround the issue with certain versions of
 // Visual Studio where it gets confused between multiple Delegate
 // classes and gives a C2500 error. (I saw this error on the try bots -
 // the workaround was not needed for my machine).
 typedef SpeechRecognizer::Delegate SpeechRecognizerDelegate;
 
 }  // namespace speech_input
 
 #endif  // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNIZER_H_