Fix mismatch between different NACK list lengths and packet buffers.

This is a second version of http://review.webrtc.org/1065006/ which passes the parameters via methods instead of via constructors.

BUG=1289

Review URL: https://webrtc-codereview.appspot.com/1065007

git-svn-id: http://webrtc.googlecode.com/svn/trunk@3456 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/video_coding/main/source/receiver.h b/webrtc/modules/video_coding/main/source/receiver.h
index 9d18e24..492d616 100644
--- a/webrtc/modules/video_coding/main/source/receiver.h
+++ b/webrtc/modules/video_coding/main/source/receiver.h
@@ -59,6 +59,8 @@
 
   // NACK.
   void SetNackMode(VCMNackMode nackMode);
+  void SetNackSettings(size_t max_nack_list_size,
+                       int max_packet_age_to_nack);
   VCMNackMode NackMode() const;
   VCMNackStatus NackList(uint16_t* nackList, uint16_t* size);