Mojo: Move mojo/public/shell to mojo/public/{cpp,interfaces}/shell.

mojo/apps/js/main.js

 // 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.
 
 define([
     'console',
     'monotonic_clock',
     'timer',
     'mojo/public/bindings/js/connection',
     'mojo/bindings/js/core',
     'mojo/apps/js/bindings/gl',
     'mojo/apps/js/bindings/threading',
     'mojo/services/native_viewport/native_viewport.mojom',
-    'mojo/public/shell/shell.mojom',
+    'mojo/public/interfaces/shell/shell.mojom',
 ], function(console,
             monotonicClock,
             timer,
             connection,
             core,
             gljs,
             threading,
             nativeViewport,
             shell) {
 
@@ skipping 361 matching lines @@
 
   GLES2ClientImpl.prototype.contextLost = function() {
     console.log('GLES2ClientImpl.prototype.contextLost');
   };
 
 
   return function(handle) {
     new connection.Connection(handle, SampleApp, shell.ShellProxy);
   };
 });