net: move host_resolver files from net/base to net/dns

net/base/mapped_host_resolver.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/mapped_host_resolver.h"
-
-#include "base/string_util.h"
-#include "net/base/host_port_pair.h"
-#include "net/base/net_errors.h"
-#include "net/base/net_util.h"
-
-namespace net {
-
-MappedHostResolver::MappedHostResolver(scoped_ptr<HostResolver> impl)
-    : impl_(impl.Pass()) {
-}
-
-MappedHostResolver::~MappedHostResolver() {
-}
-
-int MappedHostResolver::Resolve(const RequestInfo& original_info,
-                                AddressList* addresses,
-                                const CompletionCallback& callback,
-                                RequestHandle* out_req,
-                                const BoundNetLog& net_log) {
-  RequestInfo info = original_info;
-  int rv = ApplyRules(&info);
-  if (rv != OK)
-    return rv;
-
-  return impl_->Resolve(info, addresses, callback, out_req, net_log);
-}
-
-int MappedHostResolver::ResolveFromCache(const RequestInfo& original_info,
-                                         AddressList* addresses,
-                                         const BoundNetLog& net_log) {
-  RequestInfo info = original_info;
-  int rv = ApplyRules(&info);
-  if (rv != OK)
-    return rv;
-
-  return impl_->ResolveFromCache(info, addresses, net_log);
-}
-
-void MappedHostResolver::CancelRequest(RequestHandle req) {
-  impl_->CancelRequest(req);
-}
-
-void MappedHostResolver::ProbeIPv6Support() {
-  impl_->ProbeIPv6Support();
-}
-
-HostCache* MappedHostResolver::GetHostCache() {
-  return impl_->GetHostCache();
-}
-
-int MappedHostResolver::ApplyRules(RequestInfo* info) const {
-  HostPortPair host_port(info->host_port_pair());
-  if (rules_.RewriteHost(&host_port)) {
-    if (host_port.host() == "~NOTFOUND")
-      return ERR_NAME_NOT_RESOLVED;
-    info->set_host_port_pair(host_port);
-  }
-  return OK;
-}
-
-}  // namespace net