Eliminate InterfaceRegistry

ios/web/public/web_state/web_state_interface_provider.cc

+// Copyright 2013 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 "ios/web/public/web_state/web_state_interface_provider.h"
+
+#include "services/service_manager/public/cpp/identity.h"
+
+namespace web {
+
+WebStateInterfaceProvider::WebStateInterfaceProvider() : binding_(this) {}
+WebStateInterfaceProvider::~WebStateInterfaceProvider() = default;
+
+void WebStateInterfaceProvider::Bind(
+    service_manager::mojom::InterfaceProviderRequest request) {
+  binding_.Bind(std::move(request));
+}
+
+void WebStateInterfaceProvider::GetInterface(
+    const std::string& interface_name,
+    mojo::ScopedMessagePipeHandle handle) {
+  registry_.BindInterface(service_manager::Identity(), interface_name,
+                          std::move(handle));
+}
+
+}  // namespace web