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

chrome/browser/page_load_metrics/observers/protocol_page_load_metrics_observer.h

Index: chrome/browser/page_load_metrics/observers/protocol_page_load_metrics_observer.h
diff --git a/chrome/browser/page_load_metrics/observers/protocol_page_load_metrics_observer.h b/chrome/browser/page_load_metrics/observers/protocol_page_load_metrics_observer.h
index 369d8d11022eb2834e741db286ad135b684f605d..66349f4540b59941b355a13833a282f31a9b1133 100644
--- a/chrome/browser/page_load_metrics/observers/protocol_page_load_metrics_observer.h
+++ b/chrome/browser/page_load_metrics/observers/protocol_page_load_metrics_observer.h
@@ -20,22 +20,22 @@ class ProtocolPageLoadMetricsObserver
                         bool started_in_foreground) override;
   ObservePolicy OnCommit(content::NavigationHandle* navigation_handle) override;
   ObservePolicy OnHidden(
-      const page_load_metrics::PageLoadTiming& timing,
+      const page_load_metrics::mojom::PageLoadTiming& timing,
       const page_load_metrics::PageLoadExtraInfo& info) override;
   void OnParseStart(
-      const page_load_metrics::PageLoadTiming& timing,
+      const page_load_metrics::mojom::PageLoadTiming& timing,
       const page_load_metrics::PageLoadExtraInfo& extra_info) override;
   void OnFirstContentfulPaint(
-      const page_load_metrics::PageLoadTiming& timing,
+      const page_load_metrics::mojom::PageLoadTiming& timing,
       const page_load_metrics::PageLoadExtraInfo& extra_info) override;
   void OnFirstMeaningfulPaint(
-      const page_load_metrics::PageLoadTiming& timing,
+      const page_load_metrics::mojom::PageLoadTiming& timing,
       const page_load_metrics::PageLoadExtraInfo& extra_info) override;
   void OnDomContentLoadedEventStart(
-      const page_load_metrics::PageLoadTiming& timing,
+      const page_load_metrics::mojom::PageLoadTiming& timing,
       const page_load_metrics::PageLoadExtraInfo& extra_info) override;
   void OnLoadEventStart(
-      const page_load_metrics::PageLoadTiming& timing,
+      const page_load_metrics::mojom::PageLoadTiming& timing,
       const page_load_metrics::PageLoadExtraInfo& extra_info) override;
 
  private: