Reimplements net::AddressList without struct addrinfo.

net/base/host_resolver_proc.cc

Index: net/base/host_resolver_proc.cc
diff --git a/net/base/host_resolver_proc.cc b/net/base/host_resolver_proc.cc
index c2f2ddde1b34b08781be89bb242272ff77d8c344..70b63e174e5d75f41e5a0221098506e0c9cd7049 100644
--- a/net/base/host_resolver_proc.cc
+++ b/net/base/host_resolver_proc.cc
@@ -56,6 +56,20 @@ bool IsAllLocalhostOfOneFamily(const struct addrinfo* ai) {
 
 }  // namespace
 
+void SetPortOnAddressList(uint16 port, AddressList* list) {
+  DCHECK(list);
+  for (AddressList::iterator it = list->begin(); it != list->end(); ++it) {
+    *it = IPEndPoint(it->address(), port);
+  }
+}
+
+void EnsurePortOnAddressList(uint16 port, AddressList* list) {
+  DCHECK(list);
+  if (list->empty() || list->front().port() == port)
+    return;
+  SetPortOnAddressList(port, list);
+}
+
 HostResolverProc* HostResolverProc::default_proc_ = NULL;
 
 HostResolverProc::HostResolverProc(HostResolverProc* previous) {
@@ -236,7 +250,7 @@ int SystemHostResolverProc(const std::string& host,
     return ERR_NAME_NOT_RESOLVED;
   }
 
-  *addrlist = AddressList::CreateByAdoptingFromSystem(ai);
+  *addrlist = AddressList::CreateFromAddrinfo(ai);
   return OK;
 }