Pass RapporService to content/browser/

components/rappor/sample.h

-// Copyright 2015 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_RAPPOR_SAMPLE_H_
-#define COMPONENTS_RAPPOR_SAMPLE_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <map>
-#include <string>
-
-#include "base/macros.h"
-#include "components/rappor/rappor_parameters.h"
-
-namespace rappor {
-
-class RapporReports;
-class RapporService;
-class TestSamplerFactory;
-
-// Sample is a container for information about a single instance of some event
-// we are sending Rappor data about.  It may contain multiple different fields,
-// which describe different details of the event, and they will be sent in the
-// same Rappor report, enabling analysis of correlations between those fields.
-class Sample {
- public:
-  virtual ~Sample();
-
-  // Sets a string value field in this sample.
-  virtual void SetStringField(const std::string& field_name,
-                              const std::string& value);
-
-  // TODO(holte): Move all callers to the version with NoiseLevel.
-  virtual void SetFlagsField(const std::string& field_name,
-                             uint64_t flags,
-                             size_t num_flags);
-
-  // Sets a group of boolean flags as a field in this sample, with the
-  // specified noise level.
-  // |flags| should be a set of boolean flags stored in the lowest |num_flags|
-  // bits of |flags|.
-  virtual void SetFlagsField(const std::string& field_name,
-                             uint64_t flags,
-                             size_t num_flags,
-                             NoiseLevel noise_level);
-
-  // Sets an integer value field in this sample, at the given noise level.
-  virtual void SetUInt64Field(const std::string& field_name,
-                              uint64_t value,
-                              NoiseLevel noise_level);
-
-  // Generate randomized reports and store them in |reports|.
-  virtual void ExportMetrics(const std::string& secret,
-                             const std::string& metric_name,
-                             RapporReports* reports) const;
-
-  const RapporParameters& parameters() { return parameters_; }
-
- private:
-  friend class TestSamplerFactory;
-  friend class RapporService;
-  friend class TestSample;
-
-  // Constructs a sample.  Instead of calling this directly, call
-  // RapporService::MakeSampleObj to create a sample.
-  Sample(int32_t cohort_seed, const RapporParameters& parameters);
-
-  const RapporParameters parameters_;
-
-  // Offset used for bloom filter hash functions.
-  uint32_t bloom_offset_;
-
-  struct FieldInfo {
-    // Size of the field, in bytes.
-    size_t size;
-    // The non-randomized report value for the field.
-    uint64_t value;
-    // The noise level to use when creating a report for the field.
-    NoiseLevel noise_level;
-  };
-
-  // Information about all recorded fields.
-  std::map<std::string, FieldInfo> field_info_;
-
-  DISALLOW_COPY_AND_ASSIGN(Sample);
-};
-
-}  // namespace rappor
-
-#endif  // COMPONENTS_RAPPOR_SAMPLE_H_