Standardize which page loads are tracked

chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer_unittest.cc

Index: chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer_unittest.cc
diff --git a/chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer_unittest.cc b/chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer_unittest.cc
index 3557d722926ec92f20a532e3c0e7ee9ddbec1b57..8a1c61778cea6c80335479cb87a829bb7e7bd233 100644
--- a/chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer_unittest.cc
+++ b/chrome/browser/page_load_metrics/observers/aborts_page_load_metrics_observer_unittest.cc
@@ -29,6 +29,25 @@ TEST_F(AbortsPageLoadMetricsObserverTest, UnknownNavigationBeforeCommit) {
       internal::kHistogramAbortUnknownNavigationBeforeCommit, 1);
 }
 
+TEST_F(AbortsPageLoadMetricsObserverTest,
+       UnknownProvisionalNavigationBeforeCommit) {
+  StartNavigation(GURL("https://www.google.com"));
+  StartNavigation(GURL("https://www.example.com"));
+  histogram_tester().ExpectTotalCount(
+      internal::kHistogramAbortUnknownNavigationBeforeCommit, 1);
+}
+
+TEST_F(AbortsPageLoadMetricsObserverTest,
+       UnknownNavigationBeforeCommitNonTrackedPageLoad) {
+  StartNavigation(GURL("https://www.google.com"));
+  // Simulate the user performing another navigation before commit. Navigate to
+  // an untracked URL, to verify that we still log abort metrics even if the new
+  // navigation isn't tracked.
+  NavigateAndCommit(GURL("about:blank"));
+  histogram_tester().ExpectTotalCount(
+      internal::kHistogramAbortUnknownNavigationBeforeCommit, 1);
+}
+
 TEST_F(AbortsPageLoadMetricsObserverTest, NewNavigationBeforePaint) {
   NavigateAndCommit(GURL("https://www.google.com"));
   SimulateTimingWithoutPaint();