Extend net/base/parse_number.h for parsing of negative numbers, and determining if there was overflo

net/base/host_port_pair.cc

 // 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.
 
 #include "net/base/host_port_pair.h"
 
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
@@ skipping 20 matching lines @@
 HostPortPair HostPortPair::FromIPEndPoint(const IPEndPoint& ipe) {
   return HostPortPair(ipe.ToStringWithoutPort(), ipe.port());
 }
 
 HostPortPair HostPortPair::FromString(const std::string& str) {
   std::vector<base::StringPiece> key_port = base::SplitStringPiece(
       str, ":", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
   if (key_port.size() != 2)
     return HostPortPair();
   int port;
-  if (!ParseNonNegativeDecimalInt(key_port[1], &port))
+  if (!ParseInt32(key_port[1], ParseIntFormat::NON_NEGATIVE, &port))
     return HostPortPair();
   if (!IsPortValid(port))
     return HostPortPair();
   HostPortPair host_port_pair;
   host_port_pair.set_host(key_port[0].as_string());
   host_port_pair.set_port(static_cast<uint16_t>(port));
   return host_port_pair;
 }
 
 std::string HostPortPair::ToString() const {
@@ skipping 16 matching lines @@
   // Check to see if the host is an IPv6 address.  If so, added brackets.
   if (host_.find(':') != std::string::npos) {
     DCHECK_NE(host_[0], '[');
     return base::StringPrintf("[%s]", host_.c_str());
   }
 
   return host_;
 }
 
 }  // namespace net