Audit of kConstants missing the const qualifier

webrtc/modules/rtp_rtcp/source/forward_error_correction_internal.h

Index: webrtc/modules/rtp_rtcp/source/forward_error_correction_internal.h
diff --git a/webrtc/modules/rtp_rtcp/source/forward_error_correction_internal.h b/webrtc/modules/rtp_rtcp/source/forward_error_correction_internal.h
index c61aea872c54ac612c30ba35469d914ed2571468..b437cee400f7bfafd71efeffa36d8f2d6ae4d657 100644
--- a/webrtc/modules/rtp_rtcp/source/forward_error_correction_internal.h
+++ b/webrtc/modules/rtp_rtcp/source/forward_error_correction_internal.h
@@ -35,15 +35,15 @@ class PacketMaskTable {
   PacketMaskTable(FecMaskType fec_mask_type, int num_media_packets);
   ~PacketMaskTable() {}
   FecMaskType fec_mask_type() const { return fec_mask_type_; }
-  const uint8_t*** fec_packet_mask_table() const {
+  const uint8_t* const* const* fec_packet_mask_table() const {
     return fec_packet_mask_table_;
   }
 
  private:
   FecMaskType InitMaskType(FecMaskType fec_mask_type, int num_media_packets);
-  const uint8_t*** InitMaskTable(FecMaskType fec_mask_type_);
+  const uint8_t* const* const* InitMaskTable(FecMaskType fec_mask_type_);
   const FecMaskType fec_mask_type_;
-  const uint8_t*** fec_packet_mask_table_;
+  const uint8_t* const* const* fec_packet_mask_table_;
 };
 
 // Returns an array of packet masks. The mask of a single FEC packet