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| 1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 # ifndef BASE_METRICS_LINEARHISTOGRAM_SAMPLE_H |
| 6 # define BASE_METRICS_LINEARHISTOGRAM_SAMPLE_H |
| 7 |
| 8 #include <string> |
| 9 |
| 10 #include "base/base_export.h" |
| 11 #include "base/metrics/metric_sample.h" |
| 12 |
| 13 namespace base { |
| 14 class BASE_EXPORT LinearHistogramSample: public MetricSample { |
| 15 public: |
| 16 LinearHistogramSample(const std::string& histname, int sample, |
| 17 int max); |
| 18 virtual ~LinearHistogramSample(); |
| 19 std::string name(); |
| 20 int sample(); |
| 21 int max(); |
| 22 int Write(int buffer_size, char* buffer); |
| 23 // static |
| 24 static LinearHistogramSample* ReadLinearHistogram( |
| 25 const std::string& serialized_histogram); |
| 26 protected: |
| 27 std::string name_; |
| 28 int max_, sample_; |
| 29 }; |
| 30 } // namespace base |
| 31 # endif // BASE_METRICS_LINEARHISTOGRAM_SAMPLE_H |
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