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

chrome/browser/page_load_metrics/observers/media_page_load_metrics_observer_unittest.cc

Index: chrome/browser/page_load_metrics/observers/media_page_load_metrics_observer_unittest.cc
diff --git a/chrome/browser/page_load_metrics/observers/media_page_load_metrics_observer_unittest.cc b/chrome/browser/page_load_metrics/observers/media_page_load_metrics_observer_unittest.cc
index b9056aefaa76b8eff7c5a32a89453b6fd234d5d5..9a76fced88389a385ab41d3f2b720c5d7e1544eb 100644
--- a/chrome/browser/page_load_metrics/observers/media_page_load_metrics_observer_unittest.cc
+++ b/chrome/browser/page_load_metrics/observers/media_page_load_metrics_observer_unittest.cc
@@ -29,15 +29,16 @@ class MediaPageLoadMetricsObserverTest
   ~MediaPageLoadMetricsObserverTest() override = default;
 
   void ResetTest() {
+    page_load_metrics::InitPageLoadTimingForTest(&timing_);
     // Reset to the default testing state. Does not reset histogram state.
     timing_.navigation_start = base::Time::FromDoubleT(1);
     timing_.response_start = base::TimeDelta::FromSeconds(2);
-    timing_.parse_timing.parse_start = base::TimeDelta::FromSeconds(3);
-    timing_.paint_timing.first_contentful_paint =
+    timing_.parse_timing->parse_start = base::TimeDelta::FromSeconds(3);
+    timing_.paint_timing->first_contentful_paint =
         base::TimeDelta::FromSeconds(4);
-    timing_.paint_timing.first_image_paint = base::TimeDelta::FromSeconds(5);
-    timing_.paint_timing.first_text_paint = base::TimeDelta::FromSeconds(6);
-    timing_.document_timing.load_event_start = base::TimeDelta::FromSeconds(7);
+    timing_.paint_timing->first_image_paint = base::TimeDelta::FromSeconds(5);
+    timing_.paint_timing->first_text_paint = base::TimeDelta::FromSeconds(6);
+    timing_.document_timing->load_event_start = base::TimeDelta::FromSeconds(7);
     PopulateRequiredTimingFields(&timing_);
 
     network_bytes_ = 0;
@@ -108,7 +109,7 @@ class MediaPageLoadMetricsObserverTest
   int64_t cache_bytes_;
 
  private:
-  page_load_metrics::PageLoadTiming timing_;
+  page_load_metrics::mojom::PageLoadTiming timing_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaPageLoadMetricsObserverTest);
 };