Domain Reliability: More security review.

components/domain_reliability/beacon.h

Index: components/domain_reliability/beacon.h
diff --git a/components/domain_reliability/beacon.h b/components/domain_reliability/beacon.h
index 42cfb1cef6ae10ca2a6b8a590e76b8f8c4edc40c..36bddf83bfbd01bf0d65a5978322e4258423c8ac 100644
--- a/components/domain_reliability/beacon.h
+++ b/components/domain_reliability/beacon.h
@@ -17,7 +17,7 @@ class Value;
 namespace domain_reliability {
 
 // The per-request data that is uploaded to the Domain Reliability collector.
-class DOMAIN_RELIABILITY_EXPORT DomainReliabilityBeacon {
+struct DOMAIN_RELIABILITY_EXPORT DomainReliabilityBeacon {
  public:
   DomainReliabilityBeacon();
   ~DomainReliabilityBeacon();
@@ -39,7 +39,7 @@ class DOMAIN_RELIABILITY_EXPORT DomainReliabilityBeacon {
   // Start time of the request.  Encoded as the request age in the final JSON.
   base::TimeTicks start_time;
 
-  // Okay to copy and assign :)
+  // Okay to copy and assign.
 };
 
 }  // namespace domain_reliability