Implement browser-side host resolver Mojo service.

net/dns/mojo_type_converters.cc

Index: net/dns/mojo_type_converters.cc
diff --git a/net/dns/mojo_type_converters.cc b/net/dns/mojo_type_converters.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b9f11e70a4e8089e26df8890d4942e6eec7b15b8
--- /dev/null
+++ b/net/dns/mojo_type_converters.cc
@@ -0,0 +1,51 @@
+// Copyright 2015 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/dns/mojo_type_converters.h"
+
+#include "net/base/address_list.h"
+#include "net/base/net_util.h"
+#include "third_party/mojo/src/mojo/public/cpp/bindings/type_converter.h"
+
+namespace mojo {
+
+// static
+net::HostResolver::RequestInfo
+TypeConverter<net::HostResolver::RequestInfo,
+              net::interfaces::HostResolverRequestInfo>::
+    Convert(const net::interfaces::HostResolverRequestInfo& obj) {
+  net::HostResolver::RequestInfo result(net::HostPortPair(obj.host, obj.port));
+  result.set_address_family(
+      static_cast<net::AddressFamily>(obj.address_family));
+  return result;
+}
+
+// static
+net::interfaces::AddressListPtr
+TypeConverter<net::interfaces::AddressListPtr, net::AddressList>::Convert(
+    const net::AddressList& obj) {
+  net::interfaces::AddressListPtr result(net::interfaces::AddressList::New());
+  for (const auto& endpoint : obj) {
+    net::interfaces::IPEndPointPtr ep(net::interfaces::IPEndPoint::New());
+    ep->port = endpoint.port();
+    ep->address = mojo::Array<uint8_t>::From(endpoint.address());
+    result->addresses.push_back(ep.Pass());
+  }
+  return result.Pass();
+}
+
+// static
+net::AddressList
+TypeConverter<net::AddressList, net::interfaces::AddressList>::Convert(
+    const net::interfaces::AddressList& obj) {
+  net::AddressList address_list;
+  for (size_t i = 0; i < obj.addresses.size(); i++) {
+    const net::interfaces::IPEndPointPtr& ep = obj.addresses[i];
+    address_list.push_back(
+        net::IPEndPoint(ep->address.To<net::IPAddressNumber>(), ep->port));
+  }
+  return address_list;
+}
+
+}  // namespace mojo