Network error interstitial update - add suggestions list

net/base/net_errors.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_BASE_NET_ERRORS_H__
 #define NET_BASE_NET_ERRORS_H__
 
 #include <string>
 #include <vector>
 
@@ skipping 18 matching lines @@
   // The value of the first certificate error code.
   ERR_CERT_BEGIN = ERR_CERT_COMMON_NAME_INVALID,
 };
 
 // Returns a textual representation of the error code for logging purposes.
 NET_EXPORT std::string ErrorToString(int error);
 
 // Same as above, but leaves off the leading "net::".
 NET_EXPORT std::string ErrorToShortString(int error);
 
+// Returns a short string for HTTP error codes in the form of "HTTP_ERROR_123".
+NET_EXPORT std::string HttpErrorCodeToString(int error);

[mmenke, 2016/02/12 17:25:54]

Do we really need this in net?  Any reason not to use a friendly formatted
string for these?  Just to be consistent with the unfriendly net error strings?

[edwardjung, 2016/02/15 15:53:49]

I guess not. Confirmed with rachelis to change to "HTTP ERROR 123"

+
 // Returns true if |error| is a certificate error code.
 NET_EXPORT bool IsCertificateError(int error);
 
 // Returns true if |error| is a client certificate authentication error. This
 // does not include ERR_SSL_PROTOCOL_ERROR which may also signal a bad client
 // certificate.
 NET_EXPORT bool IsClientCertificateError(int error);
 
 // Map system error code to Error.
 NET_EXPORT Error MapSystemError(logging::SystemErrorCode os_error);
 
 // A convenient function to translate file error to net error code.
 NET_EXPORT Error FileErrorToNetError(base::File::Error file_error);
 
 }  // namespace net
 
 #endif  // NET_BASE_NET_ERRORS_H__