Make AudioParameters a class instead of a struct

media/audio/pulse/pulse_output.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 //
 // Creates an audio output stream based on the PulseAudio asynchronous API.
 //
 // If the stream is successfully opened, Close() must be called before the
 // stream is deleted as Close() is responsible for ensuring resource cleanup
 // occurs.
 //
 // This object is designed so that all AudioOutputStream methods will be called
@@ skipping 21 matching lines @@
 #if defined(OS_LINUX)
 class AudioManagerLinux;
 typedef AudioManagerLinux AudioManagerPulse;
 #elif defined(OS_OPENBSD)
 class AudioManagerOpenBSD;
 typedef AudioManagerOpenBSD AudioManagerPulse;
 #else
 #error Unsupported platform
 #endif
 
-struct AudioParameters;
+class AudioParameters;
 
 class PulseAudioOutputStream : public AudioOutputStream {
  public:
   PulseAudioOutputStream(const AudioParameters& params,
                          AudioManagerPulse* manager);
 
   virtual ~PulseAudioOutputStream();
 
   // Implementation of AudioOutputStream.
   virtual bool Open();
@@ skipping 70 matching lines @@
   // bound by its lifetime.
   base::WeakPtrFactory<PulseAudioOutputStream> weak_factory_;
 
   // Callback to audio data source.
   AudioSourceCallback* source_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(PulseAudioOutputStream);
 };
 
 #endif  // MEDIA_AUDIO_PULSE_PULSE_OUTPUT_H_