Revert of Deletes mojo::Callback

media/mojo/services/mojo_decryptor_service.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 "media/mojo/services/mojo_decryptor_service.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/numerics/safe_conversions.h"
 #include "media/base/audio_decoder_config.h"
 #include "media/base/cdm_context.h"
 #include "media/base/decoder_buffer.h"
 #include "media/base/decryptor.h"
 #include "media/base/media_keys.h"
 #include "media/base/video_decoder_config.h"
 #include "media/base/video_frame.h"
 #include "media/mojo/common/media_type_converters.h"
 #include "media/mojo/common/mojo_shared_buffer_video_frame.h"
 #include "media/mojo/interfaces/demuxer_stream.mojom.h"
 
 namespace media {
 
 MojoDecryptorService::MojoDecryptorService(
     const scoped_refptr<MediaKeys>& cdm,
     mojo::InterfaceRequest<mojom::Decryptor> request,
-    const base::Closure& error_handler)
+    const mojo::Closure& error_handler)
     : binding_(this, std::move(request)), cdm_(cdm), weak_factory_(this) {
   DVLOG(1) << __FUNCTION__;
   decryptor_ = cdm->GetCdmContext()->GetDecryptor();
   DCHECK(decryptor_);
   weak_this_ = weak_factory_.GetWeakPtr();
   binding_.set_connection_error_handler(error_handler);
 }
 
 MojoDecryptorService::~MojoDecryptorService() {}
 
@@ skipping 192 matching lines @@
   DCHECK_GT(bytes_to_read, 0u);
   uint32_t bytes_read = bytes_to_read;
   CHECK_EQ(ReadDataRaw(consumer_handle_.get(), media_buffer->writable_data(),
                        &bytes_read, MOJO_READ_DATA_FLAG_ALL_OR_NONE),
            MOJO_RESULT_OK);
   CHECK_EQ(bytes_to_read, bytes_read);
   return media_buffer;
 }
 
 }  // namespace media