Send an event to the page load metrics to track resource starting.

chrome/browser/page_load_metrics/observers/tab_restore_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/tab_restore_page_load_metrics_observer.h"
 
 #include <string>
 
 #include "base/metrics/histogram_macros.h"
 #include "chrome/browser/page_load_metrics/page_load_metrics_util.h"
@@ skipping 22 matching lines @@
 
 page_load_metrics::PageLoadMetricsObserver::ObservePolicy
 TabRestorePageLoadMetricsObserver::OnStart(
     content::NavigationHandle* navigation_handle,
     const GURL& currently_committed_url,
     bool started_in_foreground) {
   return IsTabRestore(navigation_handle) ? CONTINUE_OBSERVING : STOP_OBSERVING;
 }
 
 void TabRestorePageLoadMetricsObserver::OnLoadedResource(
-    const page_load_metrics::ExtraRequestInfo& extra_request_info) {
-  if (extra_request_info.was_cached) {
-    cache_bytes_ += extra_request_info.raw_body_bytes;
+    const page_load_metrics::ExtraRequestCompleteInfo&
+        extra_request_complete_info) {
+  if (extra_request_complete_info.was_cached) {
+    cache_bytes_ += extra_request_complete_info.raw_body_bytes;
   } else {
-    network_bytes_ += extra_request_info.raw_body_bytes;
+    network_bytes_ += extra_request_complete_info.raw_body_bytes;
   }
 }
 
 page_load_metrics::PageLoadMetricsObserver::ObservePolicy
 TabRestorePageLoadMetricsObserver::FlushMetricsOnAppEnterBackground(
     const page_load_metrics::PageLoadTiming& timing,
     const page_load_metrics::PageLoadExtraInfo& info) {
   // FlushMetricsOnAppEnterBackground is invoked on Android in cases where the
   // app is about to be backgrounded, as part of the Activity.onPause()
   // flow. After this method is invoked, Chrome may be killed without further
@@ skipping 18 matching lines @@
 
 bool TabRestorePageLoadMetricsObserver::IsTabRestore(
     content::NavigationHandle* navigation_handle) {
   // Only count restored tabs, and eliminate forward-back navigations, as
   // restored tab history is considered a restored navigation until they are
   // loaded the first time.
   return navigation_handle->GetRestoreType() != content::RestoreType::NONE &&
          !(navigation_handle->GetPageTransition() &
            ui::PAGE_TRANSITION_FORWARD_BACK);
 }