Implement nextHopProtocol in PerformanceResourceTiming and PerformanceNavigationTiming.

third_party/WebKit/Source/core/timing/PerformanceResourceTiming.h

Index: third_party/WebKit/Source/core/timing/PerformanceResourceTiming.h
diff --git a/third_party/WebKit/Source/core/timing/PerformanceResourceTiming.h b/third_party/WebKit/Source/core/timing/PerformanceResourceTiming.h
index 53c1d8c15d84160201a094b43405feec3a09567e..45f5d4e0a62cc866d44a634f56991bb12fd4c888 100644
--- a/third_party/WebKit/Source/core/timing/PerformanceResourceTiming.h
+++ b/third_party/WebKit/Source/core/timing/PerformanceResourceTiming.h
@@ -44,6 +44,7 @@ class ResourceTimingInfo;
 
 class CORE_EXPORT PerformanceResourceTiming : public PerformanceEntry {
   DEFINE_WRAPPERTYPEINFO();
+  friend class PerformanceResourceTimingTest;
 
  public:
   ~PerformanceResourceTiming() override;
@@ -67,6 +68,7 @@ class CORE_EXPORT PerformanceResourceTiming : public PerformanceEntry {
   }
   // Related doc: https://goo.gl/uNecAj.
   virtual AtomicString initiatorType() const;
+  AtomicString nextHopProtocol() const;
   DOMHighResTimeStamp workerStart() const;
   virtual DOMHighResTimeStamp redirectStart() const;
   virtual DOMHighResTimeStamp redirectEnd() const;
@@ -92,6 +94,8 @@ class CORE_EXPORT PerformanceResourceTiming : public PerformanceEntry {
                             const String& entry_type,
                             double start_time,
                             double duration);
+  virtual AtomicString AlpnNegotiatedProtocol() const;
+  virtual AtomicString ConnectionInfo() const;
 
  private:
   PerformanceResourceTiming(const ResourceTimingInfo&,
@@ -101,6 +105,10 @@ class CORE_EXPORT PerformanceResourceTiming : public PerformanceEntry {
                             bool allow_timing_details,
                             bool allow_redirect_details);
 
+  static AtomicString GetNextHopProtocol(
+      const AtomicString& alpn_negotiated_protocol,
+      const AtomicString& connection_info);
+
   double WorkerReady() const;
 
   virtual ResourceLoadTiming* GetResourceLoadTiming() const;
@@ -111,6 +119,8 @@ class CORE_EXPORT PerformanceResourceTiming : public PerformanceEntry {
   virtual unsigned long long GetDecodedBodySize() const;
 
   AtomicString initiator_type_;
+  AtomicString alpn_negotiated_protocol_;
+  AtomicString connection_info_;
   double time_origin_;
   RefPtr<ResourceLoadTiming> timing_;
   double last_redirect_end_time_;