RAPPOR implementation

components/metrics/metrics_hashes.h

Index: components/metrics/metrics_hashes.h
diff --git a/components/metrics/metrics_hashes.h b/components/metrics/metrics_hashes.h
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index 0000000000000000000000000000000000000000..89eeca5ea5fca892a281f97942e1e2fb308d9d33
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+++ b/components/metrics/metrics_hashes.h
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+// Copyright (c) 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_METRICS_HASHES_H_
+#define COMPONENTS_METRICS_METRICS_HASHES_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+
+namespace metrics {
+
+// Computes a uint64 hash of a given string based on its MD5 hash. Suitable for
+// metric names.
+uint64 HashMetricName(const std::string& name);
+
+}  // namespace metrics
+
+#endif  // COMPONENTS_METRICS_METRICS_HASHES_H_