Remove kProtectionKey* and VCMKeyRequestMode.

webrtc/modules/video_coding/main/source/video_coding_impl.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 188 matching lines @@
   void RegisterPreDecodeImageCallback(EncodedImageCallback* observer);
   void TriggerDecoderShutdown();
 
  protected:
   int32_t Decode(const webrtc::VCMEncodedFrame& frame)
       EXCLUSIVE_LOCKS_REQUIRED(_receiveCritSect);
   int32_t RequestKeyFrame();
   int32_t RequestSliceLossIndication(const uint64_t pictureID) const;
 
  private:
-  enum VCMKeyRequestMode {
-    kKeyOnError,    // Normal mode, request key frames on decoder error
-    kKeyOnKeyLoss,  // Request key frames on decoder error and on packet loss
-                    // in key frames.
-    kKeyOnLoss,     // Request key frames on decoder error and on packet loss
-                    // in any frame
-  };
-
   Clock* const clock_;
   rtc::scoped_ptr<CriticalSectionWrapper> process_crit_sect_;
   CriticalSectionWrapper* _receiveCritSect;
   VCMTiming _timing;
   VCMReceiver _receiver;
   VCMDecodedFrameCallback _decodedFrameCallback;
   VCMFrameTypeCallback* _frameTypeCallback GUARDED_BY(process_crit_sect_);
   VCMReceiveStatisticsCallback* _receiveStatsCallback
       GUARDED_BY(process_crit_sect_);
   VCMDecoderTimingCallback* _decoderTimingCallback
       GUARDED_BY(process_crit_sect_);
   VCMPacketRequestCallback* _packetRequestCallback
       GUARDED_BY(process_crit_sect_);
   VCMRenderBufferSizeCallback* render_buffer_callback_
       GUARDED_BY(process_crit_sect_);
   VCMGenericDecoder* _decoder;
 #ifdef DEBUG_DECODER_BIT_STREAM
   FILE* _bitStreamBeforeDecoder;
 #endif
   VCMFrameBuffer _frameFromFile;
-  VCMKeyRequestMode _keyRequestMode;
   bool _scheduleKeyRequest GUARDED_BY(process_crit_sect_);
   size_t max_nack_list_size_ GUARDED_BY(process_crit_sect_);
   EncodedImageCallback* pre_decode_image_callback_ GUARDED_BY(_receiveCritSect);
 
   VCMCodecDataBase _codecDataBase GUARDED_BY(_receiveCritSect);
   VCMProcessTimer _receiveStatsTimer;
   VCMProcessTimer _retransmissionTimer;
   VCMProcessTimer _keyRequestTimer;
 };
 
 }  // namespace vcm
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_VIDEO_CODING_VIDEO_CODING_IMPL_H_