Move mojo\shell to services\shell

mojo/shell/public/interfaces/shell.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.
-
-module mojo.shell.mojom;
-
-import "mojo/shell/public/interfaces/connector.mojom";
-
-struct InstanceInfo {
-  uint32 id;
-  Identity identity;
-  uint32 pid;
-};
-
-// Implemented by a client that wishes to be informed when the list of running
-// instances changes.
-interface InstanceListener {
-  // Called once when the listener is added via Shell::AddInstanceListener() to
-  // provide the initial list of instances that the listener observes changes
-  // against.
-  SetExistingInstances(array<InstanceInfo> instances);
-
-  // Called when the shell has started tracking an instance. This happens when
-  // the shell first handles a request to launch the instance, before any
-  // process is created for it.
-  InstanceCreated(InstanceInfo instance);
-
-  // Called when the shell has stopped tracking an instance. (i.e. when it has
-  // ended/quit).
-  InstanceDestroyed(uint32 id);
-
-  // Called when a pid is available for the instance. This could be because a
-  // process was created by the runner for it, or because an existing content
-  // handler process was assigned.
-  InstancePIDAvailable(uint32 id, uint32 pid);
-};
-
-interface Shell {
-  // The listener is removed when the |listener| pipe is closed.
-  AddInstanceListener(InstanceListener listener);
-};