Remove the AudioManager singleton.

content/browser/speech/speech_input_manager.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_INPUT_MANAGER_H_
 #define CONTENT_BROWSER_SPEECH_SPEECH_INPUT_MANAGER_H_
 
 #include <map>
 #include <string>
 
@@ skipping 32 matching lines @@
   // Describes the microphone errors that are reported via ShowMicError.
   enum MicError {
     kNoDeviceAvailable = 0,
     kDeviceInUse
   };
 
   SpeechInputManager();
 
   // Invokes the platform provided microphone settings UI in a non-blocking way,
   // via the BrowserThread::FILE thread.
-  static void ShowAudioInputSettings();
+  static void ShowAudioInputSettings(AudioManager* audio_manager);
 
   virtual ~SpeechInputManager();
 
   // Handlers for requests from render views.
 
   // |delegate| is a weak pointer and should remain valid until
   // its |DidCompleteRecognition| method is called or recognition is cancelled.
   // |render_process_id| is the ID of the renderer process initiating the
   // request.
   // |element_rect| is the display bounds of the html element requesting speech
   // input (in page coordinates).
   virtual void StartRecognition(Delegate* delegate,
                                 int caller_id,
                                 int render_process_id,
                                 int render_view_id,
                                 const gfx::Rect& element_rect,
                                 const std::string& language,
                                 const std::string& grammar,
                                 const std::string& origin_url,
                                 net::URLRequestContextGetter* context_getter,
-                                SpeechInputPreferences* speech_input_prefs);
+                                SpeechInputPreferences* speech_input_prefs,
+                                AudioManager* audio_manager);
   virtual void CancelRecognition(int caller_id);
   virtual void CancelAllRequestsWithDelegate(Delegate* delegate);
   virtual void StopRecording(int caller_id);
 
   // SpeechRecognizerDelegate methods.
   virtual void DidStartReceivingAudio(int caller_id) OVERRIDE;
   virtual void SetRecognitionResult(
       int caller_id,
       const content::SpeechInputResult& result) OVERRIDE;
   virtual void DidCompleteRecording(int caller_id) OVERRIDE;
@@ skipping 82 matching lines @@
 
 // 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 SpeechInputManager::Delegate SpeechInputManagerDelegate;
 
 }  // namespace speech_input
 
 #endif  // CONTENT_BROWSER_SPEECH_SPEECH_INPUT_MANAGER_H_