diff --git a/metrics/metrics_library.cc b/metrics/metrics_library.cc
index 2e9d69a..3cb0df6 100644
--- a/metrics/metrics_library.cc
+++ b/metrics/metrics_library.cc
@@ -171,6 +171,13 @@
       kUMAEventsPath);
 }
 
+bool MetricsLibrary::SendBoolToUMA(const std::string& name, bool sample) {
+  return metrics::SerializationUtils::WriteMetricToFile(
+      *metrics::MetricSample::LinearHistogramSample(name,
+                                                    sample ? 1 : 0, 2).get(),
+      kUMAEventsPath);
+}
+
 bool MetricsLibrary::SendSparseToUMA(const std::string& name, int sample) {
   return metrics::SerializationUtils::WriteMetricToFile(
       *metrics::MetricSample::SparseHistogramSample(name, sample).get(),
diff --git a/metrics/metrics_library.h b/metrics/metrics_library.h
index cb6e444..9f06a68 100644
--- a/metrics/metrics_library.h
+++ b/metrics/metrics_library.h
@@ -23,6 +23,7 @@
   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() {}
@@ -79,6 +80,9 @@
   // 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/metrics/metrics_library_mock.h b/metrics/metrics_library_mock.h
index 99892bf..48f41cc 100644
--- a/metrics/metrics_library_mock.h
+++ b/metrics/metrics_library_mock.h
@@ -20,6 +20,7 @@
                                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));