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

chrome/browser/page_load_metrics/observers/previews_page_load_metrics_observer_unittest.cc

Index: chrome/browser/page_load_metrics/observers/previews_page_load_metrics_observer_unittest.cc
diff --git a/chrome/browser/page_load_metrics/observers/previews_page_load_metrics_observer_unittest.cc b/chrome/browser/page_load_metrics/observers/previews_page_load_metrics_observer_unittest.cc
index c54e68ea41e87e8bcd11603859796f34875680c8..9c854258b9baf3697a718487f975757280f87b64 100644
--- a/chrome/browser/page_load_metrics/observers/previews_page_load_metrics_observer_unittest.cc
+++ b/chrome/browser/page_load_metrics/observers/previews_page_load_metrics_observer_unittest.cc
@@ -44,15 +44,16 @@ class PreviewsPageLoadMetricsObserverTest
   PreviewsPageLoadMetricsObserverTest() : is_offline_preview_(false) {}
 
   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_);
   }
 
@@ -69,16 +70,16 @@ class PreviewsPageLoadMetricsObserverTest
   void ValidateHistograms() {
     ValidateHistogramsFor(
         internal::kHistogramOfflinePreviewsDOMContentLoadedEventFired,
-        timing_.document_timing.dom_content_loaded_event_start);
+        timing_.document_timing->dom_content_loaded_event_start);
     ValidateHistogramsFor(internal::kHistogramOfflinePreviewsFirstLayout,
-                          timing_.document_timing.first_layout);
+                          timing_.document_timing->first_layout);
     ValidateHistogramsFor(internal::kHistogramOfflinePreviewsLoadEventFired,
-                          timing_.document_timing.load_event_start);
+                          timing_.document_timing->load_event_start);
     ValidateHistogramsFor(
         internal::kHistogramOfflinePreviewsFirstContentfulPaint,
-        timing_.paint_timing.first_contentful_paint);
+        timing_.paint_timing->first_contentful_paint);
     ValidateHistogramsFor(internal::kHistogramOfflinePreviewsParseStart,
-                          timing_.parse_timing.parse_start);
+                          timing_.parse_timing->parse_start);
   }
 
   void ValidateHistogramsFor(const std::string& histogram_,
@@ -100,7 +101,7 @@ class PreviewsPageLoadMetricsObserverTest
   }
 
  private:
-  page_load_metrics::PageLoadTiming timing_;
+  page_load_metrics::mojom::PageLoadTiming timing_;
   bool is_offline_preview_;
 
   DISALLOW_COPY_AND_ASSIGN(PreviewsPageLoadMetricsObserverTest);