Fix code style and gyp files in cast to build cast_unittest

media/cast/audio_receiver/audio_decoder.h

 // Copyright 2013 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_CAST_AUDIO_RECEIVER_AUDIO_DECODER_H_
 #define MEDIA_CAST_AUDIO_RECEIVER_AUDIO_DECODER_H_
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "media/cast/cast_config.h"
 #include "media/cast/cast_thread.h"
 #include "media/cast/rtp_common/rtp_defines.h"
 
 namespace webrtc {
 class AudioCodingModule;
 }
 
 namespace media {
 namespace cast {
 
 // Thread safe class.
 // It should be called from the main cast thread; however that is not required.
 class AudioDecoder : public base::RefCountedThreadSafe<AudioDecoder> {
  public:
   explicit AudioDecoder(scoped_refptr<CastThread> cast_thread,
                         const AudioReceiverConfig& audio_config);
 
-  virtual ~AudioDecoder();
-
   // Extract a raw audio frame from the decoder.
   // Set the number of desired 10ms blocks and frequency.
   bool GetRawAudioFrame(int number_of_10ms_blocks,
                         int desired_frequency,
                         PcmAudioFrame* audio_frame,
                         uint32* rtp_timestamp);
 
   // Insert an RTP packet to the decoder.
   void IncomingParsedRtpPacket(const uint8* payload_data,
                                int payload_size,
                                const RtpCastHeader& rtp_header);
 
+ protected:
+  virtual ~AudioDecoder();
+
  private:
-  // Can't use scoped_ptr due to protected constructor within webrtc.
-  webrtc::AudioCodingModule* audio_decoder_;
+  friend class base::RefCountedThreadSafe<AudioDecoder>;
+
+  scoped_ptr<webrtc::AudioCodingModule> audio_decoder_;
   bool have_received_packets_;
   scoped_refptr<CastThread> cast_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioDecoder);
 };
 
 }  // namespace cast
 }  // namespace media
 
-#endif  // MEDIA_CAST_AUDIO_RECEIVER_AUDIO_DECODER_H_
+#endif  // MEDIA_CAST_AUDIO_RECEIVER_AUDIO_DECODER_H_