Implement utility-side proxy resolver factory Mojo service.

net/proxy/mojo_proxy_resolver_factory_impl.h

+// 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.
+
+#ifndef NET_PROXY_MOJO_PROXY_RESOLVER_FACTORY_IMPL_H_
+#define NET_PROXY_MOJO_PROXY_RESOLVER_FACTORY_IMPL_H_
+
+#include "base/callback.h"
+#include "net/interfaces/proxy_resolver_service.mojom.h"
+#include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
+
+namespace net {
+class HostResolver;
+class ProxyResolver;
+
+class MojoProxyResolverFactoryImpl : public interfaces::ProxyResolverFactory {
+ public:
+  using Factory = base::Callback<scoped_ptr<ProxyResolver>(HostResolver*)>;
+
+  explicit MojoProxyResolverFactoryImpl(
+      mojo::InterfaceRequest<interfaces::ProxyResolverFactory> request);
+  MojoProxyResolverFactoryImpl(
+      const Factory& proxy_resolver_factory,
+      mojo::InterfaceRequest<interfaces::ProxyResolverFactory> request);
+
+  ~MojoProxyResolverFactoryImpl() override;
+
+ private:
+  // interfaces::ProxyResolverFactory override.
+  void CreateResolver(mojo::InterfaceRequest<interfaces::ProxyResolver> request,
+                      interfaces::HostResolverPtr host_resolver) override;
+
+  const Factory proxy_resolver_impl_factory_;
+  mojo::StrongBinding<interfaces::ProxyResolverFactory> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(MojoProxyResolverFactoryImpl);
+};
+
+}  // namespace net
+
+#endif  // NET_PROXY_MOJO_PROXY_RESOLVER_FACTORY_IMPL_H_