Revert of Added a debug info UI for Blimp

blimp/net/blimp_connection_statistics.h

Index: blimp/net/blimp_connection_statistics.h
diff --git a/blimp/net/blimp_connection_statistics.h b/blimp/net/blimp_connection_statistics.h
deleted file mode 100644
index 497a982c71ccdb697ae48712122beb11328dd19a..0000000000000000000000000000000000000000
--- a/blimp/net/blimp_connection_statistics.h
+++ /dev/null
@@ -1,48 +0,0 @@
-// 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.
-
-#ifndef BLIMP_NET_BLIMP_CONNECTION_STATISTICS_H_
-#define BLIMP_NET_BLIMP_CONNECTION_STATISTICS_H_
-
-#include <map>
-#include "base/macros.h"
-#include "base/metrics/sparse_histogram.h"
-#include "blimp/net/blimp_net_export.h"
-
-namespace blimp {
-
-// Collects network traffic statistics. Maintains a counter for number of
-// completed commits, bytes sent and received over network and notifies its
-// observers on the main thread.
-// This class is supposed to live an entire session, created and destroyed along
-// it. This class is thread-safe.
-class BLIMP_NET_EXPORT BlimpConnectionStatistics {
- public:
-  enum EventType {
-    BYTES_SENT = 0,
-    BYTES_RECEIVED = 1,
-    COMMIT = 2,
-  };
-
-  BlimpConnectionStatistics();
-
-  ~BlimpConnectionStatistics();
-
-  // Accumulates values for a metric.
-  void Add(EventType type, int data);
-
-  // Returns value for a metric.
-  int Get(EventType type);
-
- private:
-  // A histogram to hold the metrics. It will have one sample for each type of
-  // metric which will be accumulated on each subsequent call.
-  std::unique_ptr<base::HistogramBase> histogram_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlimpConnectionStatistics);
-};
-
-}  // namespace blimp
-
-#endif  // BLIMP_NET_BLIMP_CONNECTION_STATISTICS_H_