Minor refactor to get rid of a friend association

components/data_use_measurement/core/data_use.h

Index: components/data_use_measurement/core/data_use.h
diff --git a/components/data_use_measurement/core/data_use.h b/components/data_use_measurement/core/data_use.h
index d2b789706fd4bf7efb9dea4f916fa528ec21028c..6a1c950e5859f3ff781808d8736c522a68333828 100644
--- a/components/data_use_measurement/core/data_use.h
+++ b/components/data_use_measurement/core/data_use.h
@@ -56,6 +56,10 @@ class DataUse : public base::SupportsUserData {
     description_ = description;
   }
 
+  // Increments the total received and sent byte counts. Can be used to
+  // decrement the byte counts as well.
+  void IncrementTotalBytes(int64_t bytes_received, int64_t bytes_sent);
+
   int64_t total_bytes_received() const { return total_bytes_received_; }
 
   int64_t total_bytes_sent() const { return total_bytes_sent_; }
@@ -63,10 +67,6 @@ class DataUse : public base::SupportsUserData {
   TrafficType traffic_type() const { return traffic_type_; }
 
  private:
-  // TODO(rajendrant): Remove this friend after adding member function to
-  // increment total sent/received bytes.
-  friend class DataUseRecorder;
-
   GURL url_;
   std::string description_;
   const TrafficType traffic_type_;