Implement nextHopProtocol in PerformanceResourceTiming and PerformanceNavigationTiming.

third_party/WebKit/Source/platform/network/ResourceTimingInfo.h

Index: third_party/WebKit/Source/platform/network/ResourceTimingInfo.h
diff --git a/third_party/WebKit/Source/platform/network/ResourceTimingInfo.h b/third_party/WebKit/Source/platform/network/ResourceTimingInfo.h
index 789cb5daa2829951674c1b832fe316a5b8f16088..3ac479b241ea6ccc530121c888fd7bdf90e11742 100644
--- a/third_party/WebKit/Source/platform/network/ResourceTimingInfo.h
+++ b/third_party/WebKit/Source/platform/network/ResourceTimingInfo.h
@@ -67,6 +67,11 @@ class PLATFORM_EXPORT ResourceTimingInfo {
   void setInitiatorType(const AtomicString& type) { m_type = type; }
   const AtomicString& initiatorType() const { return m_type; }
 
+  /*void setNextHopProtocol(const AtomicString& nextHopProtocol) {

[panicker, 2016/10/19 00:25:11]

why is this commented out?
Remove if not needed

[sunjian, 2016/10/21 00:19:50]

Done.

+    m_nextHopProtocol = nextHopProtocol;
+  }*/
+  const AtomicString& nextHopProtocol() const { return m_nextHopProtocol; }
+
   void setOriginalTimingAllowOrigin(
       const AtomicString& originalTimingAllowOrigin) {
     m_originalTimingAllowOrigin = originalTimingAllowOrigin;
@@ -83,6 +88,7 @@ class PLATFORM_EXPORT ResourceTimingInfo {
 
   void setFinalResponse(const ResourceResponse& response) {
     m_finalResponse = response;
+    m_nextHopProtocol = response.alpnNegotiatedProtocol();
   }
   const ResourceResponse& finalResponse() const { return m_finalResponse; }
 
@@ -107,12 +113,14 @@ class PLATFORM_EXPORT ResourceTimingInfo {
                      const double time,
                      bool isMainResource)
       : m_type(type),
+        m_nextHopProtocol(""),
         m_initialTime(time),
         m_transferSize(0),
         m_isMainResource(isMainResource),
         m_hasCrossOriginRedirect(false) {}
 
   AtomicString m_type;
+  AtomicString m_nextHopProtocol;
   AtomicString m_originalTimingAllowOrigin;
   double m_initialTime;
   double m_loadFinishTime;
@@ -132,6 +140,7 @@ struct CrossThreadResourceTimingInfoData {
   CrossThreadResourceTimingInfoData() {}
 
   String m_type;
+  String m_nextHopProtocol;
   String m_originalTimingAllowOrigin;
   double m_initialTime;
   double m_loadFinishTime;