GURL: add a HostNoBrackets() method for bracketless IPv6 literals.

src/gurl.cc

 // Copyright 2007, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
@@ skipping 331 matching lines @@
     // Clip off the reference when it exists. The reference starts after the #
     // sign, so we have to subtract one to also remove it.
     return std::string(spec_, parsed_.path.begin,
                        parsed_.ref.begin - parsed_.path.begin - 1);
   }
 
   // Use everything form the path to the end.
   return std::string(spec_, parsed_.path.begin);
 }
 
+std::string GURL::HostNoBrackets() const {
+  // If host looks like an IPv6 literal, strip the square brackets.
+  url_parse::Component h(parsed_.host);
+  if (h.len >= 2 && spec_[h.begin] == '[' && spec_[h.end() - 1] == ']') {
+    h.begin++;
+    h.len -= 2;
+  }
+  return ComponentString(h);
+}
+
 bool GURL::HostIsIPAddress() const {
   if (!is_valid_ || spec_.empty())
      return false;
 
   url_canon::RawCanonOutputT<char, 128> ignored_output;
   url_parse::Component ignored_component;
   return url_canon::CanonicalizeIPAddress(spec_.c_str(), parsed_.host,
                                           &ignored_output, &ignored_component);
 }
 
@@ skipping 68 matching lines @@
 
   return true;
 }
 
 void GURL::Swap(GURL* other) {
   spec_.swap(other->spec_);
   std::swap(is_valid_, other->is_valid_);
   std::swap(parsed_, other->parsed_);
 }