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diff --git a/metricsd/serialization/serialization_utils.h b/metricsd/serialization/serialization_utils.h
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--- a/metricsd/serialization/serialization_utils.h
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@@ -1,64 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef METRICS_SERIALIZATION_SERIALIZATION_UTILS_H_
-#define METRICS_SERIALIZATION_SERIALIZATION_UTILS_H_
-
-#include <string>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/scoped_vector.h"
-
-namespace metrics {
-
-class MetricSample;
-
-// Metrics helpers to serialize and deserialize metrics collected by
-// ChromeOS.
-namespace SerializationUtils {
-
-// Deserializes a sample passed as a string and return a sample.
-// The return value will either be a scoped_ptr to a Metric sample (if the
-// deserialization was successful) or a NULL scoped_ptr.
-scoped_ptr<MetricSample> ParseSample(const std::string& sample);
-
-// Reads all samples from a file. The file contents remain unchanged.
-void ReadMetricsFromFile(const std::string& filename,
-                         ScopedVector<MetricSample>* metrics);
-
-// Reads all samples from a file and truncates the file when done.
-void ReadAndTruncateMetricsFromFile(const std::string& filename,
-                                    ScopedVector<MetricSample>* metrics);
-
-// Serializes a sample and write it to filename.
-// The format for the message is:
-//  message_size, serialized_message
-// where
-//  * message_size is the total length of the message (message_size +
-//    serialized_message) on 4 bytes
-//  * serialized_message is the serialized version of sample (using ToString)
-//
-//  NB: the file will never leave the device so message_size will be written
-//  with the architecture's endianness.
-bool WriteMetricToFile(const MetricSample& sample, const std::string& filename);
-
-// Maximum length of a serialized message
-static const int kMessageMaxLength = 1024;
-
-}  // namespace SerializationUtils
-}  // namespace metrics
-
-#endif  // METRICS_SERIALIZATION_SERIALIZATION_UTILS_H_