Removing unused PreviewsDataSavings

components/data_reduction_proxy/core/common/data_savings_recorder.h

Index: components/data_reduction_proxy/core/common/data_savings_recorder.h
diff --git a/components/data_reduction_proxy/core/common/data_savings_recorder.h b/components/data_reduction_proxy/core/common/data_savings_recorder.h
deleted file mode 100644
index a96cf5984bec230034cc60068667834cd3569bc6..0000000000000000000000000000000000000000
--- a/components/data_reduction_proxy/core/common/data_savings_recorder.h
+++ /dev/null
@@ -1,30 +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 COMPONENTS_DATA_REDUCTION_PROXY_CORE_COMMON_DATA_SAVINGS_RECORDER_H_
-#define COMPONENTS_DATA_REDUCTION_PROXY_CORE_COMMON_DATA_SAVINGS_RECORDER_H_
-
-#include <stdint.h>
-
-#include <string>
-
-namespace data_reduction_proxy {
-
-// An interface that will record data savings based on the amount of data used,
-// the original size of the data, and the request type.
-class DataSavingsRecorder {
- public:
-  // Records detailed data usage. Assumes |data_used| is recorded already by
-  // previous handling of URLRequests. Also records daily data savings
-  // statistics to prefs and reports data savings UMA. |data_used| and
-  // |original_size| are measured in bytes.
-  // Returns true if data savings was recorded.
-  virtual bool UpdateDataSavings(const std::string& data_usage_host,
-                                 int64_t data_used,
-                                 int64_t original_size) = 0;
-};
-
-}  // namespace data_reduction_proxy
-
-#endif  // COMPONENTS_DATA_REDUCTION_PROXY_CORE_COMMON_DATA_SAVINGS_RECORDER_H_