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

chrome/browser/page_load_metrics/metrics_web_contents_observer.cc

Index: chrome/browser/page_load_metrics/metrics_web_contents_observer.cc
diff --git a/chrome/browser/page_load_metrics/metrics_web_contents_observer.cc b/chrome/browser/page_load_metrics/metrics_web_contents_observer.cc
index c6a2dd46c92d9ed53048c2bb8f35aca62171db0c..4e82e00f14bbf2b011c2a51a26ff43ed2c1d7831 100644
--- a/chrome/browser/page_load_metrics/metrics_web_contents_observer.cc
+++ b/chrome/browser/page_load_metrics/metrics_web_contents_observer.cc
@@ -572,8 +572,8 @@ MetricsWebContentsObserver::NotifyAbortedProvisionalLoadsNewNavigation(
 
 void MetricsWebContentsObserver::OnTimingUpdated(
     content::RenderFrameHost* render_frame_host,
-    const PageLoadTiming& timing,
-    const PageLoadMetadata& metadata) {
+    const mojom::PageLoadTiming& timing,
+    const mojom::PageLoadMetadata& metadata) {
   // We may receive notifications from frames that have been navigated away
   // from. We simply ignore them.
   if (GetMainFrame(render_frame_host) != web_contents()->GetMainFrame()) {
@@ -602,7 +602,7 @@ void MetricsWebContentsObserver::OnTimingUpdated(
   if (render_frame_host->GetParent() != nullptr) {
     // Child frames may send PageLoadMetadata updates, but not PageLoadTiming
     // updates.
-    if (!timing.IsEmpty())
+    if (!IsEmpty(timing))
       RecordInternalError(ERR_TIMING_IPC_FROM_SUBFRAME);
     committed_load_->UpdateChildFrameMetadata(metadata);
     return;