Remove the AudioManager singleton.

content/browser/speech/speech_input_dispatcher_host.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_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_SPEECH_SPEECH_INPUT_DISPATCHER_HOST_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/browser_message_filter.h"
 #include "content/browser/speech/speech_input_manager.h"
 #include "content/common/content_export.h"
 #include "net/url_request/url_request_context_getter.h"
 
+class AudioManager;
 struct SpeechInputHostMsg_StartRecognition_Params;
 
 namespace speech_input {
 
 // SpeechInputDispatcherHost is a delegate for Speech API messages used by
 // RenderMessageFilter.
 // It's the complement of SpeechInputDispatcher (owned by RenderView).
 class SpeechInputDispatcherHost : public BrowserMessageFilter,
                                   public SpeechInputManager::Delegate {
  public:
   class SpeechInputCallers;
 
   SpeechInputDispatcherHost(
       int render_process_id,
       net::URLRequestContextGetter* context_getter,
-      SpeechInputPreferences* speech_input_preferences);
+      SpeechInputPreferences* speech_input_preferences,
+      AudioManager* audio_manager);
 
   // SpeechInputManager::Delegate methods.
   virtual void SetRecognitionResult(
       int caller_id,
       const content::SpeechInputResult& result) OVERRIDE;
   virtual void DidCompleteRecording(int caller_id) OVERRIDE;
   virtual void DidCompleteRecognition(int caller_id) OVERRIDE;
 
   // BrowserMessageFilter implementation.
   virtual bool OnMessageReceived(const IPC::Message& message,
@@ skipping 12 matching lines @@
 
   // Returns the speech input manager to forward events to, creating one if
   // needed.
   SpeechInputManager* manager();
 
   int render_process_id_;
   bool may_have_pending_requests_;  // Set if we received any speech IPC request
 
   scoped_refptr<net::URLRequestContextGetter> context_getter_;
   scoped_refptr<SpeechInputPreferences> speech_input_preferences_;
+  scoped_refptr<AudioManager> audio_manager_;
 
   static SpeechInputManager* manager_;
 
   DISALLOW_COPY_AND_ASSIGN(SpeechInputDispatcherHost);
 };
 
 }  // namespace speech_input
 
 #endif  // CONTENT_BROWSER_SPEECH_SPEECH_INPUT_DISPATCHER_HOST_H_