Update To 11.40.268.0

[platform/framework/web/crosswalk.git] / src / components / rappor / rappor_metric.cc

diff --git a/src/components/rappor/rappor_metric.cc b/src/components/rappor/rappor_metric.cc
index 92765de..862ead8 100644 (file)
--- a/src/components/rappor/rappor_metric.cc
+++ b/src/components/rappor/rappor_metric.cc
@@ -21,6 +21,9 @@ RapporMetric::RapporMetric(const std::string& metric_name,
                         parameters.bloom_filter_hash_function_count) {
   DCHECK_GE(cohort_seed, 0);
   DCHECK_LT(cohort_seed, RapporParameters::kMaxCohorts);
+  // Since cohort_seed is in the range [0, kMaxCohorts), num_cohorts should
+  // divide kMaxCohorts for each cohort to have equal weight.
+  DCHECK_EQ(0, RapporParameters::kMaxCohorts % parameters.num_cohorts);
 }
 
 RapporMetric::~RapporMetric() {}