Deletes mojo::Callback

device/serial/data_sink_receiver.h

Index: device/serial/data_sink_receiver.h
diff --git a/device/serial/data_sink_receiver.h b/device/serial/data_sink_receiver.h
index 03ae098fcfef893c75cc62f9b4dec736903965c2..57030d1773ac5b06ec56eebc5bd7f93803535fe9 100644
--- a/device/serial/data_sink_receiver.h
+++ b/device/serial/data_sink_receiver.h
@@ -52,10 +52,10 @@ class DataSinkReceiver : public base::RefCounted<DataSinkReceiver>,
 
   ~DataSinkReceiver() override;
 
-  // mojo::InterfaceImpl<serial::DataSink> overrides.
+  // serial::DataSink overrides.
   void Cancel(int32_t error) override;
   void OnData(mojo::Array<uint8_t> data,
-              const mojo::Callback<void(uint32_t, int32_t)>& callback) override;
+              const OnDataCallback& callback) override;
   void ClearError() override;
 
   void OnConnectionError();