Fix overflow in user traffic content type histogram

components/data_use_measurement/core/data_use_measurement.h

Index: components/data_use_measurement/core/data_use_measurement.h
diff --git a/components/data_use_measurement/core/data_use_measurement.h b/components/data_use_measurement/core/data_use_measurement.h
index 931d6f1033d3a1fc50652411e3e6dd8e864d807f..32d887cfa4d349f738886fcd84fd2f721753a88e 100644
--- a/components/data_use_measurement/core/data_use_measurement.h
+++ b/components/data_use_measurement/core/data_use_measurement.h
@@ -181,6 +181,10 @@ class DataUseMeasurement {
   int64_t rx_bytes_os_;
   int64_t tx_bytes_os_;
 
+  // User traffic data use by content type is logged in 1KB increments. The
+  // remaining bytes are saved in this array until logged next time.
+  int64_t user_traffic_content_type_bytes_[DataUseUserData::TYPE_MAX];
+
   // Number of bytes received and sent by Chromium as reported by the network
   // delegate since the operating system was last queried for traffic
   // statistics.