Add a Java InterfaceRegistry.

services/shell/public/java/src/org/chromium/mojo/application/ShellHelper.java

-// 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.
-
-package org.chromium.mojo.application;
-
-import org.chromium.mojo.bindings.Interface;
-import org.chromium.mojo.bindings.Interface.Proxy;
-import org.chromium.mojo.bindings.InterfaceRequest;
-import org.chromium.mojo.system.Core;
-import org.chromium.mojo.system.Pair;
-import org.chromium.mojom.mojo.ServiceProvider;
-import org.chromium.mojom.mojo.Shell;
-
-/**
- * Helper class to help connecting to other application through the shell.
- */
-public class ShellHelper {
-    /**
-     * Connects to a service in another application.
-     *
-     * @param core Implementation of the {@link Core} api.
-     * @param shell Instance of the shell.
-     * @param application URL to the application to use.
-     * @param manager {@link org.chromium.mojo.bindings.Interface.Manager} for the service to
-     *            connect to.
-     * @return a proxy to the service.
-     */
-    public static <I extends Interface, P extends Proxy> P connectToService(
-            Core core, Shell shell, String application, Interface.Manager<I, P> manager) {
-        Pair<ServiceProvider.Proxy, InterfaceRequest<ServiceProvider>> providerRequest =
-                ServiceProvider.MANAGER.getInterfaceRequest(core);
-        try (ServiceProvider.Proxy provider = providerRequest.first) {
-            shell.connectToApplication(application, providerRequest.second, null);
-            Pair<P, InterfaceRequest<I>> serviceRequest = manager.getInterfaceRequest(core);
-            provider.connectToService(manager.getName(), serviceRequest.second.passHandle());
-            return serviceRequest.first;
-        }
-    }
-}