Remove GetAudioManager and GetMediaStreamManager from ResourceContext. The reason is the content mo…

media/audio/audio_manager.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_MANAGER_H_
 #define MEDIA_AUDIO_AUDIO_MANAGER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 13 matching lines @@
 // objects. Provides some convenience functions that avoid the need to provide
 // iterators over the existing streams.
 class MEDIA_EXPORT AudioManager {
  public:
   virtual ~AudioManager();
 
   // Use to construct the audio manager.
   // NOTE: There should only be one instance.
   static AudioManager* Create();
 
+  // Returns the AudioManager object if it's been created, NULL otherwise.
+  static AudioManager* Get();
+
   // Returns true if the OS reports existence of audio devices. This does not
   // guarantee that the existing devices support all formats and sample rates.
   virtual bool HasAudioOutputDevices() = 0;
 
   // Returns true if the OS reports existence of audio recording devices. This
   // does not guarantee that the existing devices support all formats and
   // sample rates.
   virtual bool HasAudioInputDevices() = 0;
 
   // Returns a human readable string for the model/make of the active audio
@@ skipping 74 matching lines @@
   AudioManager();
 
   // Called from Create() to initialize the instance.
   virtual void Init() = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AudioManager);
 };
 
 #endif  // MEDIA_AUDIO_AUDIO_MANAGER_H_