Move mojo\shell to services\shell

mojo/shell/public/interfaces/interface_provider.mojom

-// Copyright 2014 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.
-
-module mojo.shell.mojom;
-
-// An interface through which a client may request interfaces from a host.
-// Instances of this interface are created within the context of an
-// already-identified client and host pair, so there is no need to explicitly
-// identify the client or host in the methods below.
-interface InterfaceProvider {
-  // Asks the host to provide an implementation of the interface identified by
-  // |interface_name| through the message |pipe| endpoint supplied by the caller.
-  // If the host is not willing or able to provide the requested interface, it
-  // must close the |pipe|.
-  GetInterface(string interface_name, handle<message_pipe> pipe);
-};