diff --git a/metricsd/include/metrics/metrics_library.h b/metricsd/include/metrics/metrics_library.h
index b766194..d2e98c8 100644
--- a/metricsd/include/metrics/metrics_library.h
+++ b/metricsd/include/metrics/metrics_library.h
@@ -34,6 +34,7 @@
   virtual bool SendToUMA(const std::string& name, int sample,
                          int min, int max, int nbuckets) = 0;
   virtual bool SendEnumToUMA(const std::string& name, int sample, int max) = 0;
+  virtual bool SendBoolToUMA(const std::string& name, bool sample) = 0;
   virtual bool SendSparseToUMA(const std::string& name, int sample) = 0;
   virtual bool SendUserActionToUMA(const std::string& action) = 0;
   virtual ~MetricsLibraryInterface() {}
@@ -96,6 +97,9 @@
   // normal, while 100 is high).
   bool SendEnumToUMA(const std::string& name, int sample, int max) override;
 
+  // Specialization of SendEnumToUMA for boolean values.
+  bool SendBoolToUMA(const std::string& name, bool sample) override;
+
   // Sends sparse histogram sample to Chrome for transport to UMA.  Returns
   // true on success.
   //
diff --git a/metricsd/include/metrics/metrics_library_mock.h b/metricsd/include/metrics/metrics_library_mock.h
index 3de87a9..db56f9e 100644
--- a/metricsd/include/metrics/metrics_library_mock.h
+++ b/metricsd/include/metrics/metrics_library_mock.h
@@ -32,6 +32,7 @@
                                int min, int max, int nbuckets));
   MOCK_METHOD3(SendEnumToUMA, bool(const std::string& name, int sample,
                                    int max));
+  MOCK_METHOD2(SendBoolToUMA, bool(const std::string& name, bool sample));
   MOCK_METHOD2(SendSparseToUMA, bool(const std::string& name, int sample));
   MOCK_METHOD1(SendUserActionToUMA, bool(const std::string& action));
 
diff --git a/metricsd/metrics_library.cc b/metricsd/metrics_library.cc
index a651b76..735d39f 100644
--- a/metricsd/metrics_library.cc
+++ b/metricsd/metrics_library.cc
@@ -173,6 +173,13 @@
       uma_events_file_.value());
 }
 
+bool MetricsLibrary::SendBoolToUMA(const std::string& name, bool sample) {
+  return metrics::SerializationUtils::WriteMetricToFile(
+      *metrics::MetricSample::LinearHistogramSample(name,
+                                                    sample ? 1 : 0, 2).get(),
+      uma_events_file_.value());
+}
+
 bool MetricsLibrary::SendSparseToUMA(const std::string& name, int sample) {
   return metrics::SerializationUtils::WriteMetricToFile(
       *metrics::MetricSample::SparseHistogramSample(name, sample).get(),