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

chrome/browser/page_load_metrics/metrics_web_contents_observer.h

Index: chrome/browser/page_load_metrics/metrics_web_contents_observer.h
diff --git a/chrome/browser/page_load_metrics/metrics_web_contents_observer.h b/chrome/browser/page_load_metrics/metrics_web_contents_observer.h
index 2735b4a95f378949fa7cef532081b44afc3832e8..36944cb82f84c05b8ab59fc3a3f69ac43edb8bca 100644
--- a/chrome/browser/page_load_metrics/metrics_web_contents_observer.h
+++ b/chrome/browser/page_load_metrics/metrics_web_contents_observer.h
@@ -57,8 +57,8 @@ class MetricsWebContentsObserver
 
     // Invoked when a new PageLoadTiming update has been received and processed.
     virtual void OnTimingUpdated(bool is_main_frame,
-                                 const PageLoadTiming& timing,
-                                 const PageLoadMetadata& metadata) {}
+                                 const mojom::PageLoadTiming& timing,
+                                 const mojom::PageLoadMetadata& metadata) {}
 
    private:
     page_load_metrics::MetricsWebContentsObserver* observer_;
@@ -140,8 +140,8 @@ class MetricsWebContentsObserver
 
   // public only for testing
   void OnTimingUpdated(content::RenderFrameHost* render_frame_host,
-                       const PageLoadTiming& timing,
-                       const PageLoadMetadata& metadata);
+                       const mojom::PageLoadTiming& timing,
+                       const mojom::PageLoadMetadata& metadata);
 
  private:
   friend class content::WebContentsUserData<MetricsWebContentsObserver>;