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

net/interfaces/proxy_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.
-
-// 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;
-
-import "host_resolver_service.mojom";
-
-// Mirror of net::ProxyServer::Scheme.
-enum ProxyScheme {
-  INVALID,
-  DIRECT,
-  HTTP,
-  SOCKS4,
-  SOCKS5,
-  HTTPS,
-  QUIC,
-};
-
-// Mirror of net::ProxyServer.
-struct ProxyServer {
-  ProxyScheme scheme;
-  string host;
-  uint16 port;
-};
-
-interface ProxyResolverService {
-  SetPacScript(string data) => (int32 result);
-
-  // Use a ProxyResolverRequestClient instead of returning a result so we can
-  // receive load state updates and cancel in-flight requests by destroying the
-  // client.
-  // TODO(amistry): Add BoundNetLog.
-  GetProxyForUrl(string url, ProxyResolverRequestClient client);
-};
-
-interface ProxyResolverRequestClient {
-  ReportResult(int32 error, array<ProxyServer>? proxy_servers);
-};
-
-interface ProxyResolverFactory {
-  // TODO(amistry): Add NetLog and ProxyResolverErrorObserver.
-  CreateResolver(ProxyResolverService& resolver,
-                 HostResolverService host_resolver);
-};