Move mojo::{Wait,WaitMany}() to (the newly-added) mojo/public/cpp/system/wait.h.

examples/audio_play_test/play_wav.cc

 // 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.
 
 #include <memory>
 
 #include "mojo/public/c/system/main.h"
 #include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/application/application_impl.h"
 #include "mojo/public/cpp/application/application_runner.h"
 #include "mojo/public/cpp/system/data_pipe.h"
+#include "mojo/public/cpp/system/wait.h"
 #include "mojo/public/cpp/utility/run_loop.h"
 #include "mojo/services/media/audio/interfaces/audio_server.mojom.h"
 #include "mojo/services/media/audio/interfaces/audio_track.mojom.h"
 #include "mojo/services/media/common/cpp/circular_buffer_media_pipe_adapter.h"
 #include "mojo/services/media/common/cpp/linear_transform.h"
 #include "mojo/services/media/common/cpp/local_time.h"
 #include "mojo/services/network/interfaces/network_service.mojom.h"
 #include "mojo/services/network/interfaces/url_loader.mojom.h"
 
 #define PACKED __attribute__((packed))
@@ skipping 527 matching lines @@
 }  // namespace audio
 }  // namespace media
 }  // namespace mojo
 
 MojoResult MojoMain(MojoHandle app_request) {
   mojo::ApplicationRunner runner(
       std::unique_ptr<mojo::media::audio::examples::PlayWAVApp>(
           new mojo::media::audio::examples::PlayWAVApp()));
   return runner.Run(app_request);
 }