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

content/public/browser/navigation_handle.h

 // Copyright 2015 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 CONTENT_PUBLIC_BROWSER_NAVIGATION_HANDLE_H_
 #define CONTENT_PUBLIC_BROWSER_NAVIGATION_HANDLE_H_
 
 #include <memory>
 
 #include "content/common/content_export.h"
 #include "content/public/browser/navigation_throttle.h"
 #include "content/public/common/referrer.h"
 #include "net/base/net_errors.h"
+#include "net/http/http_response_info.h"
 #include "ui/base/page_transition_types.h"
 
 class GURL;
 
 namespace net {
 class HttpResponseHeaders;
 }  // namespace net
 
 namespace content {
 class NavigationData;
@@ skipping 136 matching lines @@
   // GetNetErrorCode will be net::OK.
   virtual bool IsErrorPage() = 0;
 
   // Returns the response headers for the request, or nullptr if there aren't
   // any response headers or they have not been received yet. The response
   // headers may change during the navigation (e.g. after encountering a server
   // redirect). The headers returned should not be modified, as modifications
   // will not be reflected in the network stack.
   virtual const net::HttpResponseHeaders* GetResponseHeaders() = 0;
 
+  // Returns the connection info for the request, the default value is
+  // CONNECTION_INFO_UNKNOWN if there hasn't been a response yet. The

[clamy, 2016/11/02 14:09:27]

nit: precise that a response may mean a redirect.

[jkarlin, 2016/11/02 15:14:21]

Done.

+  // connection info may change during the navigation (e.g. after encountering
+  // a server redirect).
+  virtual net::HttpResponseInfo::ConnectionInfo GetConnectionInfo() = 0;
+
   // Resumes a navigation that was previously deferred by a NavigationThrottle.
   virtual void Resume() = 0;
 
   // Cancels a navigation that was previously deferred by a NavigationThrottle.
   // |result| should be equal to NavigationThrottle::CANCEL or
   // NavigationThrottle::CANCEL_AND_IGNORE.
   virtual void CancelDeferredNavigation(
       NavigationThrottle::ThrottleCheckResult result) = 0;
 
   // Testing methods ----------------------------------------------------------
@@ skipping 42 matching lines @@
 
   // The NavigationData that the embedder returned from
   // ResourceDispatcherHostDelegate::GetNavigationData during commit. This will
   // be a clone of the NavigationData.
   virtual NavigationData* GetNavigationData() = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_NAVIGATION_HANDLE_H_