Revert of Deletes mojo::Callback

extensions/browser/api/mime_handler_private/mime_handler_private.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 "extensions/browser/api/mime_handler_private/mime_handler_private.h"
 
 #include <utility>
 
 #include "base/strings/string_util.h"
 #include "content/public/browser/stream_handle.h"
@@ skipping 47 matching lines @@
     base::WeakPtr<StreamContainer> stream_container,
     mojo::InterfaceRequest<mime_handler::MimeHandlerService> request)
     : stream_(stream_container),
       binding_(this, std::move(request)),
       weak_factory_(this) {}
 
 MimeHandlerServiceImpl::~MimeHandlerServiceImpl() {
 }
 
 void MimeHandlerServiceImpl::GetStreamInfo(
-    const GetStreamInfoCallback& callback) {
+    const mojo::Callback<void(mime_handler::StreamInfoPtr)>& callback) {
   if (!stream_) {
     callback.Run(mime_handler::StreamInfoPtr());
     return;
   }
   callback.Run(mojo::ConvertTo<mime_handler::StreamInfoPtr>(*stream_));
 }
 
-void MimeHandlerServiceImpl::AbortStream(const AbortStreamCallback& callback) {
+void MimeHandlerServiceImpl::AbortStream(
+    const mojo::Callback<void()>& callback) {
   if (!stream_) {
     callback.Run();
     return;
   }
   stream_->Abort(base::Bind(&MimeHandlerServiceImpl::OnStreamClosed,
                             weak_factory_.GetWeakPtr(), callback));
 }
 
 void MimeHandlerServiceImpl::OnStreamClosed(
-    const AbortStreamCallback& callback) {
+    const mojo::Callback<void()>& callback) {
   callback.Run();
 }
 
 }  // namespace extensions
 
 namespace mojo {
 
 extensions::mime_handler::StreamInfoPtr TypeConverter<
     extensions::mime_handler::StreamInfoPtr,
     extensions::StreamContainer>::Convert(const extensions::StreamContainer&
@@ skipping 18 matching lines @@
     result->original_url = info->original_url.spec();
   }
 
   result->stream_url = info->handle->GetURL().spec();
   result->response_headers =
       extensions::CreateResponseHeadersMap(info->response_headers.get());
   return result;
 }
 
 }  // namespace mojo