Delete the tracing service

services/tracing/data_sink.h

Index: services/tracing/data_sink.h
diff --git a/services/tracing/data_sink.h b/services/tracing/data_sink.h
deleted file mode 100644
index dcca896169adbd648d9150a285e011eb7bc71639..0000000000000000000000000000000000000000
--- a/services/tracing/data_sink.h
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright 2014 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.
-
-#ifndef SERVICES_TRACING_DATA_SINK_H_
-#define SERVICES_TRACING_DATA_SINK_H_
-
-#include <string>
-
-#include "base/macros.h"
-#include "mojo/public/cpp/system/data_pipe.h"
-
-namespace tracing {
-
-class DataSink {
- public:
-  explicit DataSink(mojo::ScopedDataPipeProducerHandle pipe);
-  ~DataSink();
-
-  void AddChunk(const std::string& json);
-
- private:
-  mojo::ScopedDataPipeProducerHandle pipe_;
-  bool empty_;
-
-  DISALLOW_COPY_AND_ASSIGN(DataSink);
-};
-
-}  // namespace tracing
-
-#endif  // SERVICES_TRACING_DATA_SINK_H_