Index: components/metrics/linearhistogram_sample_chromeos.h |
diff --git a/components/metrics/linearhistogram_sample_chromeos.h b/components/metrics/linearhistogram_sample_chromeos.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..a0c40613556057ec9df472840a4ee3fccb75e3ac |
--- /dev/null |
+++ b/components/metrics/linearhistogram_sample_chromeos.h |
@@ -0,0 +1,45 @@ |
+// 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 COMPONENTS_METRICS_LINEARHISTOGRAM_SAMPLE_CHROMEOS_H |
Ben Chan
2014/04/18 20:27:08
ditto
|
+#define COMPONENTS_METRICS_LINEARHISTOGRAM_SAMPLE_CHROMEOS_H |
+ |
+#include <string> |
+ |
+#include "base/base_export.h" |
+#include "base/compiler_specific.h" |
+#include "components/metrics/metric_sample_chromeos.h" |
+ |
+namespace metrics { |
+ |
+// Represents a linear histogram sample (called Enum too). |
+// This class is meant to be used to serialize and deserialize samples to send |
+// them from chrome os to chrome. |
+class BASE_EXPORT LinearHistogramSample : public MetricSample { |
+ public: |
+ LinearHistogramSample(const std::string& name, int sample, int max); |
+ virtual ~LinearHistogramSample(); |
+ |
+ int sample() const { return sample_; } |
+ int max() const { return max_; } |
+ |
+ // Returns the serialized version of the sample in the format: |
+ // linearhistogram\0|name_| |sample_| |max_|\0 |
+ virtual std::string ToString() const OVERRIDE; |
+ |
+ // Deserialize a sample passed as a string. |
+ // Returns a LinearHistogram if the deserialization is successful. |
+ // Returns NULL if the deserialization fails. |
+ static LinearHistogramSample* ReadLinearHistogram( |
+ const std::string& serialized_histogram); |
+ |
+ private: |
+ const int sample_, max_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(LinearHistogramSample); |
+}; |
+ |
+} // namespace metrics |
+ |
+#endif // COMPONENTS_METRICS_LINEARHISTOGRAM_SAMPLE_CHROMEOS_H |