Update ServiceWorker page load histograms to log immediately.

chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer.h

Index: chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer.h
diff --git a/chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer.h b/chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer.h
index 34f0adabfeb688a136c382e00b14cc139971ea33..08eea59d983570aefcb94fb70e29bddc7d9fe654 100644
--- a/chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer.h
+++ b/chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer.h
@@ -13,15 +13,17 @@ class ServiceWorkerPageLoadMetricsObserver
  public:
   ServiceWorkerPageLoadMetricsObserver();
   // page_load_metrics::PageLoadMetricsObserver implementation:
-  void OnComplete(
+  void OnFirstContentfulPaint(
       const page_load_metrics::PageLoadTiming& timing,
       const page_load_metrics::PageLoadExtraInfo& extra_info) override;
-
- private:
-  void LogServiceWorkerHistograms(
+  void OnDomContentLoadedEventStart(
+      const page_load_metrics::PageLoadTiming& timing,
+      const page_load_metrics::PageLoadExtraInfo& extra_info) override;
+  void OnLoadEventStart(
       const page_load_metrics::PageLoadTiming& timing,
-      const page_load_metrics::PageLoadExtraInfo& info);
+      const page_load_metrics::PageLoadExtraInfo& extra_info) override;
 
+ private:
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerPageLoadMetricsObserver);
 };