Move logic for calculating needed bitrate overhead used by NACK and FEC to VideoSender.

webrtc/modules/video_coding/include/video_coding.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 170 matching lines @@
   // Input:
   //      - rtt                   : Current round-trip time in ms.
   //                                with the most amount available bandwidth in
   //                                a conference
   //                                scenario
   //
   // Return value      : VCM_OK, on success.
   //                     < 0,    on error.
   virtual int32_t SetReceiveChannelParameters(int64_t rtt) = 0;
 
+  // Deprecated: This method currently does not have any effect.
   // Register a video protection callback which will be called to deliver
   // the requested FEC rate and NACK status (on/off).
-  //
-  // Input:
-  //      - protection  : The callback object to register.
-  //
-  // Return value      : VCM_OK, on success.
-  //                     < 0,    on error.
+  // TODO(perkj): Remove once no projects use it.
   virtual int32_t RegisterProtectionCallback(
       VCMProtectionCallback* protection) = 0;
 
   // Enable or disable a video protection method.
   //
   // Input:
   //      - videoProtection  : The method to enable or disable.
   //      - enable           : True if the method should be enabled, false if
   //                           it should be disabled.
   //
@@ skipping 278 matching lines @@
 
   virtual void RegisterPostEncodeImageCallback(
       EncodedImageCallback* post_encode_callback) = 0;
   // Releases pending decode calls, permitting faster thread shutdown.
   virtual void TriggerDecoderShutdown() = 0;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_INCLUDE_VIDEO_CODING_H_