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

chrome/browser/page_load_metrics/observers/resource_prefetch_predictor_page_load_metrics_observer.cc

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/page_load_metrics/observers/resource_prefetch_predictor_page_load_metrics_observer.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/page_load_metrics/page_load_metrics_util.h"
@@ skipping 46 matching lines @@
     bool started_in_foreground) {
   record_histograms_ =
       started_in_foreground &&
       predictor_->IsUrlPrefetchable(navigation_handle->GetURL());
 
   return CONTINUE_OBSERVING;
 }
 
 page_load_metrics::PageLoadMetricsObserver::ObservePolicy
 ResourcePrefetchPredictorPageLoadMetricsObserver::OnHidden(
-    const page_load_metrics::PageLoadTiming& timing,
+    const page_load_metrics::mojom::PageLoadTiming& timing,
     const page_load_metrics::PageLoadExtraInfo& extra_info) {
   record_histograms_ = false;
   return CONTINUE_OBSERVING;
 }
 
 void ResourcePrefetchPredictorPageLoadMetricsObserver::
     OnFirstContentfulPaintInPage(
-        const page_load_metrics::PageLoadTiming& timing,
+        const page_load_metrics::mojom::PageLoadTiming& timing,
         const page_load_metrics::PageLoadExtraInfo& extra_info) {
   predictors::NavigationID navigation_id(web_contents_);
 
   predictor_->RecordFirstContentfulPaint(
       navigation_id, extra_info.navigation_start +
-                         timing.paint_timing.first_contentful_paint.value());
+                         timing.paint_timing->first_contentful_paint.value());
   if (record_histograms_) {
     PAGE_LOAD_HISTOGRAM(
         internal::kHistogramResourcePrefetchPredictorFirstContentfulPaint,
-        timing.paint_timing.first_contentful_paint.value());
+        timing.paint_timing->first_contentful_paint.value());
   }
 }
 
 void ResourcePrefetchPredictorPageLoadMetricsObserver::
     OnFirstMeaningfulPaintInMainFrameDocument(
-        const page_load_metrics::PageLoadTiming& timing,
+        const page_load_metrics::mojom::PageLoadTiming& timing,
         const page_load_metrics::PageLoadExtraInfo& extra_info) {
   if (record_histograms_) {
     PAGE_LOAD_HISTOGRAM(
         internal::kHistogramResourcePrefetchPredictorFirstMeaningfulPaint,
-        timing.paint_timing.first_meaningful_paint.value());
+        timing.paint_timing->first_meaningful_paint.value());
   }
 }