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

chrome/browser/page_load_metrics/observers/data_reduction_proxy_metrics_observer.h

 // Copyright 2016 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.
 
 #ifndef CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_DATA_REDUCTION_PROXY_METRICS_OBSERVER_H_
 #define CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_DATA_REDUCTION_PROXY_METRICS_OBSERVER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 86 matching lines @@
   void OnFirstContentfulPaint(
       const page_load_metrics::PageLoadTiming& timing,
       const page_load_metrics::PageLoadExtraInfo& info) override;
   void OnFirstMeaningfulPaint(
       const page_load_metrics::PageLoadTiming& timing,
       const page_load_metrics::PageLoadExtraInfo& info) override;
   void OnParseStart(const page_load_metrics::PageLoadTiming& timing,
                     const page_load_metrics::PageLoadExtraInfo& info) override;
   void OnParseStop(const page_load_metrics::PageLoadTiming& timing,
                    const page_load_metrics::PageLoadExtraInfo& info) override;
-  void OnLoadedResource(
-      const page_load_metrics::ExtraRequestInfo& extra_request_info) override;
+  void OnLoadedResource(const page_load_metrics::ExtraRequestCompleteInfo&
+                            extra_request_compelte_info) override;
 
  private:
   // Sends the page load information to the pingback client.
   void SendPingback(const page_load_metrics::PageLoadTiming& timing,
                     const page_load_metrics::PageLoadExtraInfo& info,
                     bool app_background_occurred);
 
   // Records UMA of page size when the observer is about to be deleted.
   void RecordPageSizeUMA() const;
 
@@ skipping 21 matching lines @@
 
   // The total network bytes used.
   int64_t network_bytes_;
 
   DISALLOW_COPY_AND_ASSIGN(DataReductionProxyMetricsObserver);
 };
 
 }  // namespace data_reduction_proxy
 
 #endif  // CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_DATA_REDUCTION_PROXY_METRICS_OBSERVER_H_