Bisect - Fix compare_samples to read scalar values.

tracing/tracing/metrics/compare_samples_cmdline.html

Index: tracing/tracing/metrics/compare_samples_cmdline.html
diff --git a/tracing/tracing/metrics/compare_samples_cmdline.html b/tracing/tracing/metrics/compare_samples_cmdline.html
index 36d42daaf15e621e4c916bcb1e0069c4829cd13b..3d9ce69d021868c339ae721047490ab1a077185d 100644
--- a/tracing/tracing/metrics/compare_samples_cmdline.html
+++ b/tracing/tracing/metrics/compare_samples_cmdline.html
@@ -77,6 +77,8 @@ function valuesFromCharts(listOfCharts, metricName) {
         if (charts.charts[chartName][traceName].type === 'histogram')
           allValues.push(
               geoMeanFromHistogram(charts.charts[chartName][traceName]));
+        if (charts.charts[chartName][traceName].type === 'scalar')
+          allValues.push(charts.charts[chartName][traceName].value);
       }
     }
   }