[Page Load Metrics] Add mojom file to page load metrics.

chrome/browser/prerender/prerender_browsertest.cc

Index: chrome/browser/prerender/prerender_browsertest.cc
diff --git a/chrome/browser/prerender/prerender_browsertest.cc b/chrome/browser/prerender/prerender_browsertest.cc
index 24a5fb9906911f0a0badb496e63030802d7821a7..fb4be2156946987a9c8ad55c8d75476f10ad370e 100644
--- a/chrome/browser/prerender/prerender_browsertest.cc
+++ b/chrome/browser/prerender/prerender_browsertest.cc
@@ -3434,9 +3434,10 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, FirstContentfulPaintTimingSimple) {
                                             GetActiveWebContents());
   observer.SetNavigationStartTicksForTesting(load_start);
 
-  page_load_metrics::PageLoadTiming timing;
+  page_load_metrics::mojom::PageLoadTiming timing;
+  page_load_metrics::InitPageLoadTimingForTest(&timing);
   timing.navigation_start = base::Time::FromDoubleT(1);  // Non-null time.
-  timing.paint_timing.first_contentful_paint =
+  timing.paint_timing->first_contentful_paint =
       base::TimeDelta::FromMilliseconds(2654);
   page_load_metrics::PageLoadMetricsObserverTestHarness::
       PopulateRequiredTimingFields(&timing);
@@ -3476,9 +3477,10 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, FirstContentfulPaintTimingReuse) {
                                             GetActiveWebContents());
   observer.SetNavigationStartTicksForTesting(load_start);
 
-  page_load_metrics::PageLoadTiming timing;
+  page_load_metrics::mojom::PageLoadTiming timing;
+  page_load_metrics::InitPageLoadTimingForTest(&timing);
   timing.navigation_start = base::Time::FromDoubleT(1);  // Non-null time.
-  timing.paint_timing.first_contentful_paint =
+  timing.paint_timing->first_contentful_paint =
       base::TimeDelta::FromMilliseconds(2361);
   page_load_metrics::PageLoadMetricsObserverTestHarness::
       PopulateRequiredTimingFields(&timing);
@@ -3518,9 +3520,10 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest,
                                             GetActiveWebContents());
   observer.SetNavigationStartTicksForTesting(load_start);
 
-  page_load_metrics::PageLoadTiming timing;
+  page_load_metrics::mojom::PageLoadTiming timing;
+  page_load_metrics::InitPageLoadTimingForTest(&timing);
   timing.navigation_start = base::Time::FromDoubleT(1);  // Non-null time.
-  timing.paint_timing.first_contentful_paint =
+  timing.paint_timing->first_contentful_paint =
       base::TimeDelta::FromMilliseconds(2361);
   page_load_metrics::PageLoadMetricsObserverTestHarness::
       PopulateRequiredTimingFields(&timing);
@@ -3562,9 +3565,10 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest,
                                             GetActiveWebContents());
   observer.SetNavigationStartTicksForTesting(clock->NowTicks());
 
-  page_load_metrics::PageLoadTiming timing;
+  page_load_metrics::mojom::PageLoadTiming timing;
+  page_load_metrics::InitPageLoadTimingForTest(&timing);
   timing.navigation_start = base::Time::FromDoubleT(1);  // Non-null time.
-  timing.paint_timing.first_contentful_paint =
+  timing.paint_timing->first_contentful_paint =
       base::TimeDelta::FromMilliseconds(2362);
   page_load_metrics::PageLoadMetricsObserverTestHarness::
       PopulateRequiredTimingFields(&timing);
@@ -3612,10 +3616,11 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest,
                                             GetActiveWebContents());
   observer.SetNavigationStartTicksForTesting(load_start);
 
-  page_load_metrics::PageLoadTiming timing;
+  page_load_metrics::mojom::PageLoadTiming timing;
+  page_load_metrics::InitPageLoadTimingForTest(&timing);
   timing.navigation_start = base::Time::FromDoubleT(1);  // Non-null time.
   // The FCP time should end up on the edge of the bucket.
-  timing.paint_timing.first_contentful_paint =
+  timing.paint_timing->first_contentful_paint =
       base::TimeDelta::FromMilliseconds(2654);
   page_load_metrics::PageLoadMetricsObserverTestHarness::
       PopulateRequiredTimingFields(&timing);
@@ -3642,12 +3647,13 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, FirstContentfulPaintHidden) {
   observer.SetNavigationStartTicksForTesting(load_start);
 
   EXPECT_EQ(page_load_metrics::PageLoadMetricsObserver::CONTINUE_OBSERVING,
-            observer.OnHidden(page_load_metrics::PageLoadTiming(),
+            observer.OnHidden(page_load_metrics::mojom::PageLoadTiming(),
                               GenericPageLoadExtraInfo(dest_url())));
 
-  page_load_metrics::PageLoadTiming timing;
+  page_load_metrics::mojom::PageLoadTiming timing;
+  page_load_metrics::InitPageLoadTimingForTest(&timing);
   timing.navigation_start = base::Time::FromDoubleT(1);  // Non-null time.
-  timing.paint_timing.first_contentful_paint =
+  timing.paint_timing->first_contentful_paint =
       base::TimeDelta::FromMilliseconds(2654);
   page_load_metrics::PageLoadMetricsObserverTestHarness::
       PopulateRequiredTimingFields(&timing);
@@ -3688,12 +3694,13 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest,
   observer.SetNavigationStartTicksForTesting(clock->NowTicks());
 
   EXPECT_EQ(page_load_metrics::PageLoadMetricsObserver::CONTINUE_OBSERVING,
-            observer.OnHidden(page_load_metrics::PageLoadTiming(),
+            observer.OnHidden(page_load_metrics::mojom::PageLoadTiming(),
                               GenericPageLoadExtraInfo(dest_url())));
 
-  page_load_metrics::PageLoadTiming timing;
+  page_load_metrics::mojom::PageLoadTiming timing;
+  page_load_metrics::InitPageLoadTimingForTest(&timing);
   timing.navigation_start = base::Time::FromDoubleT(1);  // Non-null time.
-  timing.paint_timing.first_contentful_paint =
+  timing.paint_timing->first_contentful_paint =
       base::TimeDelta::FromMilliseconds(2362);
   page_load_metrics::PageLoadMetricsObserverTestHarness::
       PopulateRequiredTimingFields(&timing);