Index: base/metrics/histogram_base.cc |
diff --git a/base/metrics/histogram_base.cc b/base/metrics/histogram_base.cc |
index 6e7e69e061c632858f3bfcc33310d5145cfeb4e1..f09c84e20d0968262c8ec338c8691d9863b3b0d6 100644 |
--- a/base/metrics/histogram_base.cc |
+++ b/base/metrics/histogram_base.cc |
@@ -109,7 +109,7 @@ void HistogramBase::WriteJSON(std::string* output) const { |
DictionaryValue root; |
root.SetString("name", histogram_name()); |
root.SetInteger("count", count); |
- root.SetDouble("sum", sum); |
+ root.SetDouble("sum", static_cast<double>(sum)); |
root.SetInteger("flags", flags()); |
root.Set("params", parameters.release()); |
root.Set("buckets", buckets.release()); |