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

content/public/browser/navigation_handle.h

Index: content/public/browser/navigation_handle.h
diff --git a/content/public/browser/navigation_handle.h b/content/public/browser/navigation_handle.h
index eae9cd46bb8b6910c79c93eb67b4ac1215d7c657..b6ae5c7d0bdf999e8ea87b749888a5a40149e608 100644
--- a/content/public/browser/navigation_handle.h
+++ b/content/public/browser/navigation_handle.h
@@ -11,6 +11,7 @@
 #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;
@@ -167,6 +168,12 @@ class CONTENT_EXPORT NavigationHandle {
   // 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 (or redirect)
+  // yet. The 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;