Mojo: re-organize public tests

mojo/public/bindings/sample/sample_service.mojom

-// 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.
-
-module sample {
-
-enum BarType {
-  BAR_VERTICAL = 1,
-  BAR_HORIZONTAL = 2,
-  BAR_INVALID
-};
-
-struct Bar {
-  uint8 alpha @0;
-  uint8 beta @1;
-  uint8 gamma @2;
-  int32 type @3;
-};
-
-[RequiredFields=7]
-struct Foo {
-  string name @8;
-  int32 x @0;
-  int32 y @1;
-  bool a @2;
-  bool b @3;
-  bool c @4;
-  Bar bar @5;
-  Bar[] extra_bars @7;
-  uint8[] data @6;
-  handle<message_pipe> source @9;
-  handle<data_pipe_consumer>[] input_streams @10;
-  handle<data_pipe_producer>[] output_streams @11;
-};
-
-[Peer=ServiceClient]
-interface Service {
-  enum BazOptions {
-    BAZ_REGULAR = 0,
-    BAZ_EXTRA
-  };
-  void Frobinate(Foo foo @0, int32 baz @1, handle<message_pipe> port @2) @0;
-};
-
-[Peer=Service]
-interface ServiceClient {
-  void DidFrobinate(int32 result @0) @0;
-};
-
-}