Refactor PageLoadMetricsObserver completion callback policy

components/page_load_metrics/browser/page_load_metrics_observer.cc

Index: components/page_load_metrics/browser/page_load_metrics_observer.cc
diff --git a/components/page_load_metrics/browser/page_load_metrics_observer.cc b/components/page_load_metrics/browser/page_load_metrics_observer.cc
index 98ffef5cdf6f2557326beeb6082cfe5f10e8d9bd..6b87b6266cdabde6dcc7c8b287979396053faa01 100644
--- a/components/page_load_metrics/browser/page_load_metrics_observer.cc
+++ b/components/page_load_metrics/browser/page_load_metrics_observer.cc
@@ -27,4 +27,11 @@ PageLoadExtraInfo::PageLoadExtraInfo(
 PageLoadExtraInfo::PageLoadExtraInfo(const PageLoadExtraInfo& other) = default;
 
 PageLoadExtraInfo::~PageLoadExtraInfo() {}
+
+FailedProvisionalLoadInfo::FailedProvisionalLoadInfo(base::TimeDelta interval,
+                                                     net::Error error)
+    : time_to_failed_provisional_load(interval), error(error) {}
+
+FailedProvisionalLoadInfo::~FailedProvisionalLoadInfo() {}
+
 }  // namespace page_load_metrics