RAPPOR implementation

components/rappor/rappor_parameters.cc

+// 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.
+
+#include "components/rappor/rappor_parameters.h"
+
+#include "base/strings/stringprintf.h"
+
+namespace rappor {
+
+std::string RapporParameters::ToString() const {
+  return base::StringPrintf("{ \"%s\", %d, %d, %d, %d, %d, %d }",
+      rappor_name.c_str(),
+      bloom_filter_size_bytes,
+      bloom_filter_hash_function_count,
+      fake_prob,
+      fake_one_prob,
+      one_coin_prob,
+      zero_coin_prob);
+}
+
+const RapporParameters kHomePageRapporParameters = {
+    "Settings.HomePage" /* Metric name */,
+    16 /* Bloom filter size bytes */,
+    2 /* Bloom filter hash count */,
+    rappor::PROBABILITY_75 /* Fake data probability */,
+    rappor::PROBABILITY_50 /* Fake one probability */,
+    rappor::PROBABILITY_75 /* One coin probability */,
+    rappor::PROBABILITY_50 /* Zero coin probability */
+};
+
+}  // namespace rappor