[Prerender] first contentful paint histograms.

chrome/browser/page_load_metrics/page_load_metrics_browsertest.cc

Index: chrome/browser/page_load_metrics/page_load_metrics_browsertest.cc
diff --git a/chrome/browser/page_load_metrics/page_load_metrics_browsertest.cc b/chrome/browser/page_load_metrics/page_load_metrics_browsertest.cc
index 499c440e3c1d3083731b5f0945bd23d8ca392a23..76124a26369d7e0452976fcfa4ff0411d42bb71d 100644
--- a/chrome/browser/page_load_metrics/page_load_metrics_browsertest.cc
+++ b/chrome/browser/page_load_metrics/page_load_metrics_browsertest.cc
@@ -510,13 +510,9 @@ IN_PROC_BROWSER_TEST_F(PageLoadMetricsBrowserTest,
   NavigateToUntrackedUrl();
 
   histogram_tester_.ExpectTotalCount(
-      prerender::PrerenderHistograms::GetFirstContentfulPaintHistogramName(
-          prerender::ORIGIN_NONE, false, true, base::TimeDelta()),
-      0);
+      "Prerender.none_PrefetchTTFCP.Reference.NoStore.Visible", 0);
   histogram_tester_.ExpectTotalCount(
-      prerender::PrerenderHistograms::GetFirstContentfulPaintHistogramName(
-          prerender::ORIGIN_NONE, false, false, base::TimeDelta()),
-      1);
+      "Prerender.none_PrefetchTTFCP.Reference.Cacheable.Visible", 1);
 }
 
 IN_PROC_BROWSER_TEST_F(PageLoadMetricsBrowserTest,
@@ -528,13 +524,9 @@ IN_PROC_BROWSER_TEST_F(PageLoadMetricsBrowserTest,
   NavigateToUntrackedUrl();
 
   histogram_tester_.ExpectTotalCount(
-      prerender::PrerenderHistograms::GetFirstContentfulPaintHistogramName(
-          prerender::ORIGIN_NONE, false, true, base::TimeDelta()),
-      1);
+      "Prerender.none_PrefetchTTFCP.Reference.NoStore.Visible", 1);
   histogram_tester_.ExpectTotalCount(
-      prerender::PrerenderHistograms::GetFirstContentfulPaintHistogramName(
-          prerender::ORIGIN_NONE, false, false, base::TimeDelta()),
-      0);
+      "Prerender.none_PrefetchTTFCP.Reference.Cacheable.Visible", 0);
 }
 
 IN_PROC_BROWSER_TEST_F(PageLoadMetricsBrowserTest, CSSTiming) {