Revert of Deletes mojo::Callback

components/mus/clipboard/clipboard_impl.cc

 // Copyright 2016 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 "components/mus/clipboard/clipboard_impl.h"
 
 #include <string.h>
 #include <utility>
 
 #include "base/macros.h"
 #include "mojo/common/common_type_converters.h"
 #include "mojo/public/cpp/bindings/array.h"
+#include "mojo/public/cpp/bindings/callback.h"
 #include "mojo/public/cpp/bindings/string.h"
 
 using mojo::Array;
 using mojo::Map;
 using mojo::String;
 
 namespace mus {
 namespace clipboard {
 
 // ClipboardData contains data copied to the Clipboard for a variety of formats.
@@ skipping 76 matching lines @@
     Clipboard::Type clipboard_type,
     Map<String, Array<uint8_t>> data,
     const WriteClipboardDataCallback& callback) {
   int clipboard_num = static_cast<int>(clipboard_type);
   clipboard_state_[clipboard_num]->SetData(std::move(data));
   callback.Run(clipboard_state_[clipboard_num]->sequence_number());
 }
 
 }  // namespace clipboard
 }  // namespace mus