Revert of Add Mojo interfaces for out-of-process proxy resolver.

net/interfaces/host_resolver_service.mojom

-// 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.
-
-// WARNING! Do NOT use this mojom. It is intended as a temporary interface to
-// implement out-of-process proxy resolution. If you wish to use a Mojo DNS
-// service, contact amistry@/sammc@ and net-dev to discuss a permanent Mojo DNS
-// interface.
-
-// Put Mojo definitions into their own namespace to avoid collisions with C++
-// definitions.
-// TODO(amistry): Resolve the conflict between these two sets of definitions.
-module net.interfaces;
-
-// Mirror of net::AddressFamily.
-enum AddressFamily {
-  UNSPECIFIED,
-  IPV4,
-  IPV6,
-};
-
-// Mirror of net::HostResolver::RequestInfo.
-struct HostResolverRequestInfo {
-  string host;
-  uint16 port;
-  AddressFamily address_family;
-  bool is_my_ip_address;
-};
-
-// Mirror of net::IPEndPoint.
-struct IPEndPoint {
-  // IP address as a numeric value from most to least significant byte.
-  // Will be of length 4 for IPv4 addresses and 16 for IPv6.
-  array<uint8> address;
-  uint16 port;
-};
-
-// Mirror of net::AddressList.
-struct AddressList {
-  array<IPEndPoint> addresses;
-};
-
-interface HostResolverService {
-  // Use a HostResolverRequestClient instead of returning a result so we can
-  // cancel in-flight requests by destroying the client.  IPC requests in Mojo
-  // cannot be cancelled directly.
-  // TODO(amistry): Add BoundNetLog.
-  Resolve(HostResolverRequestInfo request_info,
-          HostResolverRequestClient client);
-};
-
-interface HostResolverRequestClient {
-  // |error| is a value in net::Error.
-  ReportResult(int32 error, AddressList? result);
-};