Move QUIC error code utility methods to quic_error_codes.{h,cc}, and rename them slightly. No beha…

net/quic/core/quic_utils.h

Index: net/quic/core/quic_utils.h
diff --git a/net/quic/core/quic_utils.h b/net/quic/core/quic_utils.h
index c1603dd8127ab6d87b2e84c2e8220a208a4e6590..09568bb7a0cb782ccbc5ab68497cf6b7602949f9 100644
--- a/net/quic/core/quic_utils.h
+++ b/net/quic/core/quic_utils.h
@@ -51,12 +51,6 @@ class NET_EXPORT_PRIVATE QuicUtils {
   // to |out|.
   static void SerializeUint128Short(uint128 v, uint8_t* out);
 
-  // Returns the name of the QuicRstStreamErrorCode as a char*
-  static const char* StreamErrorToString(QuicRstStreamErrorCode error);
-
-  // Returns the name of the QuicErrorCode as a char*
-  static const char* ErrorToString(QuicErrorCode error);
-
   // Returns the level of encryption as a char*
   static const char* EncryptionLevelToString(EncryptionLevel level);