Fix crash which happens when there's reordering in the beginning of a call.

webrtc/modules/remote_bitrate_estimator/remote_estimator_proxy.h

Index: webrtc/modules/remote_bitrate_estimator/remote_estimator_proxy.h
diff --git a/webrtc/modules/remote_bitrate_estimator/remote_estimator_proxy.h b/webrtc/modules/remote_bitrate_estimator/remote_estimator_proxy.h
index 66373e29778937dd5d9ee78b144ff0c0bfb7c5ba..127886300d8f95c2fd14d78ebc0ffae9ee5c1094 100644
--- a/webrtc/modules/remote_bitrate_estimator/remote_estimator_proxy.h
+++ b/webrtc/modules/remote_bitrate_estimator/remote_estimator_proxy.h
@@ -54,7 +54,7 @@ class RemoteEstimatorProxy : public RemoteBitrateEstimator {
  private:
   void OnPacketArrival(uint16_t sequence_number, int64_t arrival_time)
       EXCLUSIVE_LOCKS_REQUIRED(&lock_);
-  bool BuildFeedbackPacket(rtcp::TransportFeedback* feedback_packetket);
+  bool BuildFeedbackPacket(rtcp::TransportFeedback* feedback_packet);
 
   Clock* const clock_;
   PacketRouter* const packet_router_;