Index: content/browser/service_worker/service_worker_metrics.h |
diff --git a/content/browser/service_worker/service_worker_metrics.h b/content/browser/service_worker/service_worker_metrics.h |
index 1506fcbb4ad3421cbabcaea7d490571db50eae40..5024f1281f022c29b46f2eabe3dc4f5fb5764f84 100644 |
--- a/content/browser/service_worker/service_worker_metrics.h |
+++ b/content/browser/service_worker/service_worker_metrics.h |
@@ -136,6 +136,9 @@ class ServiceWorkerMetrics { |
// Converts an event type to a string. Used for tracing. |
static const char* EventTypeToString(EventType event_type); |
+ // Returns true when the event is for a navigation hint. |
+ static bool IsNavigationHintEvent(EventType event_type); |
+ |
// Excludes NTP scope from UMA for now as it tends to dominate the stats and |
// makes the results largely skewed. Some metrics don't follow this policy |
// and hence don't call this function. |
@@ -198,6 +201,13 @@ class ServiceWorkerMetrics { |
size_t handled_events, |
size_t fired_events); |
+ // Records the precision of the speculative launch of Service Workers for |
+ // each navigation hint type when the worker is stopped. If there was no |
+ // event fetched to the worker, |event_fired| is false. This means that the |
nhiroki
2016/07/28 05:38:37
fetched to -> fired on?
horo
2016/07/28 08:15:48
Done.
|
+ // speculative launch was meaningless. |
nhiroki
2016/07/28 05:38:37
'meaningless' sounds somewhat negative. How about
horo
2016/07/28 08:15:48
Done.
|
+ static void RecordNavigationHintPrecision(EventType start_worker_purpose, |
+ bool event_fired); |
+ |
// Records how often a dispatched event times out. |
static void RecordEventTimeout(EventType event); |