[PageLoadMetrics] Create page load timing metrics for H2/QUIC/H1 pages

chrome/browser/page_load_metrics/observers/protocol_page_load_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_PROTOCOL_PAGE_LOAD_METRICS_OBSERVER_H_
+#define CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_PROTOCOL_PAGE_LOAD_METRICS_OBSERVER_H_
+
+#include "base/macros.h"
+#include "chrome/browser/page_load_metrics/page_load_metrics_observer.h"
+#include "net/http/http_response_info.h"
+
+class ProtocolPageLoadMetricsObserver
+    : public page_load_metrics::PageLoadMetricsObserver {
+ public:
+  ProtocolPageLoadMetricsObserver() = default;
+
+  // page_load_metrics::PageLoadMetricsObserver implementation:
+  ObservePolicy OnCommit(content::NavigationHandle* navigation_handle) override;
+  void OnFirstContentfulPaint(
+      const page_load_metrics::PageLoadTiming& timing,
+      const page_load_metrics::PageLoadExtraInfo& extra_info) override;
+  void OnFirstMeaningfulPaint(
+      const page_load_metrics::PageLoadTiming& timing,
+      const page_load_metrics::PageLoadExtraInfo& extra_info) override;
+  void OnDomContentLoadedEventStart(
+      const page_load_metrics::PageLoadTiming& timing,
+      const page_load_metrics::PageLoadExtraInfo& extra_info) override;
+  void OnLoadEventStart(
+      const page_load_metrics::PageLoadTiming& timing,
+      const page_load_metrics::PageLoadExtraInfo& extra_info) override;
+
+ private:
+  friend class ProtocolPageLoadMetricsObserverTest;
+
+  // The connection info for the committed URL.
+  net::HttpResponseInfo::ConnectionInfo connection_info_;
+
+  DISALLOW_COPY_AND_ASSIGN(ProtocolPageLoadMetricsObserver);
+};
+
+#endif  // CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_PROTOCOL_PAGE_LOAD_METRICS_OBSERVER_H_