Enable content component (again!).

content/renderer/media/webrtc_audio_device_impl.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_RENDERER_MEDIA_WEBRTC_AUDIO_DEVICE_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_WEBRTC_AUDIO_DEVICE_IMPL_H_
 #pragma once
 
 #include <vector>
 
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop_proxy.h"
 #include "base/time.h"
 #include "content/common/content_export.h"
 #include "content/renderer/media/audio_device.h"
 #include "content/renderer/media/audio_input_device.h"
 #include "third_party/webrtc/modules/audio_device/main/interface/audio_device.h"
 
 // A WebRtcAudioDeviceImpl instance implements the abstract interface
@@ skipping 63 matching lines @@
 //      The actual data is transferred via SharedMemory. IPC is not involved
 //      in the actual media transfer.
 //
 // Implementation notes:
 //
 //  - This class must be created on the main render thread.
 //  - The webrtc::AudioDeviceModule is reference counted.
 //  - Recording is currently not supported on Mac OS X.
 //
 class CONTENT_EXPORT WebRtcAudioDeviceImpl
-    : public webrtc::AudioDeviceModule,
+    : NON_EXPORTED_BASE(public webrtc::AudioDeviceModule),
       public AudioDevice::RenderCallback,
       public AudioInputDevice::CaptureCallback,
       public AudioInputDevice::CaptureEventHandler {
  public:
   // Methods called on main render thread.
   WebRtcAudioDeviceImpl();
 
   // webrtc::RefCountedModule implementation.
   // The creator must call AddRef() after construction and use Release()
   // to release the reference and delete this object.
@@ skipping 220 matching lines @@
   int bytes_per_sample_;
 
   bool initialized_;
   bool playing_;
   bool recording_;
 
   DISALLOW_COPY_AND_ASSIGN(WebRtcAudioDeviceImpl);
 };
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBRTC_AUDIO_DEVICE_IMPL_H_