Implement nextHopProtocol in PerformanceResourceTiming and PerformanceNavigationTiming.

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

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2012 Intel Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 18 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/timing/PerformanceResourceTiming.h"
 
 #include "bindings/core/v8/V8ObjectBuilder.h"
 #include "core/timing/PerformanceBase.h"
 #include "platform/network/ResourceRequest.h"
 #include "platform/network/ResourceResponse.h"
 #include "platform/network/ResourceTimingInfo.h"
+#include <regex>
 
 namespace blink {
 
 // TODO(majidvp): Should return DOMHighResTimeStamp type instead
 static double monotonicTimeToDOMHighResTimeStamp(double timeOrigin,
                                                  double seconds) {
   ASSERT(seconds >= 0.0);
   if (!seconds || !timeOrigin)
     return 0.0;
   return PerformanceBase::clampTimeResolution(seconds - timeOrigin) * 1000.0;
 }
 
 PerformanceResourceTiming::PerformanceResourceTiming(
     const ResourceTimingInfo& info,
     double timeOrigin,
     double startTime,
     double lastRedirectEndTime,
     bool allowTimingDetails,
     bool allowRedirectDetails)
     : PerformanceEntry(
           info.initialURL().getString(),
           "resource",
           monotonicTimeToDOMHighResTimeStamp(timeOrigin, startTime),
           monotonicTimeToDOMHighResTimeStamp(timeOrigin,
                                              info.loadFinishTime())),
       m_initiatorType(info.initiatorType()),
+      m_nextHopProtocol(info.finalResponse().alpnNegotiatedProtocol()),
+      m_connectionInfo(info.finalResponse().connectionInfo()),
       m_timeOrigin(timeOrigin),
       m_timing(info.finalResponse().resourceLoadTiming()),
       m_lastRedirectEndTime(lastRedirectEndTime),
       m_finishTime(info.loadFinishTime()),
       m_transferSize(info.transferSize()),
       m_encodedBodySize(info.finalResponse().encodedBodyLength()),
       m_decodedBodySize(info.finalResponse().decodedBodyLength()),
       m_didReuseConnection(info.finalResponse().connectionReused()),
       m_allowTimingDetails(allowTimingDetails),
       m_allowRedirectDetails(allowRedirectDetails) {}
 
 PerformanceResourceTiming::~PerformanceResourceTiming() {}
 
 AtomicString PerformanceResourceTiming::initiatorType() const {
   return m_initiatorType;
 }
 
+AtomicString PerformanceResourceTiming::produceNextHopProtocol(
+    const AtomicString& alpnNegotiatedProtocol,
+    const AtomicString& connectionInfo) {
+  AtomicString returnedProtocol = alpnNegotiatedProtocol == "unknown"
+                                      ? connectionInfo
+                                      : alpnNegotiatedProtocol;
+  returnedProtocol =

[panicker, 2016/10/25 23:53:26]

Add a comment explaining this

[sunjian, 2016/10/26 19:56:52]

Done.

+      returnedProtocol == "unknown" ? "http/1.1" : returnedProtocol;
+  std::string returnedProtocolCopy = returnedProtocol.ascii().data();

[panicker, 2016/10/25 23:53:26]

std::string and std::regex are not allowed in Source/core, use string ops in
AtomicString?

[sunjian, 2016/10/26 19:56:52]

Done.

+  if (std::regex_match(returnedProtocolCopy, std::regex("(quic/)(.*)"))) {
+    returnedProtocol =
+        ("http2/+" +
+         returnedProtocolCopy.substr(0, returnedProtocolCopy.find('+')))
+            .c_str();
+  }
+  return returnedProtocol;
+}
+
+AtomicString PerformanceResourceTiming::nextHopProtocol() const {
+  return PerformanceResourceTiming::produceNextHopProtocol(m_nextHopProtocol,
+                                                           m_connectionInfo);
+}
+
 double PerformanceResourceTiming::workerStart() const {
   if (!m_timing || m_timing->workerStart() == 0.0)
     return 0.0;
 
   return monotonicTimeToDOMHighResTimeStamp(m_timeOrigin,
                                             m_timing->workerStart());
 }
 
 double PerformanceResourceTiming::workerReady() const {
   if (!m_timing || m_timing->workerReady() == 0.0)
@@ skipping 143 matching lines @@
 unsigned long long PerformanceResourceTiming::decodedBodySize() const {
   if (!m_allowTimingDetails)
     return 0;
 
   return m_decodedBodySize;
 }
 
 void PerformanceResourceTiming::buildJSONValue(V8ObjectBuilder& builder) const {
   PerformanceEntry::buildJSONValue(builder);
   builder.addString("initiatorType", initiatorType());
+  builder.addString("nextHopProtocol", nextHopProtocol());
   builder.addNumber("workerStart", workerStart());
   builder.addNumber("redirectStart", redirectStart());
   builder.addNumber("redirectEnd", redirectEnd());
   builder.addNumber("fetchStart", fetchStart());
   builder.addNumber("domainLookupStart", domainLookupStart());
   builder.addNumber("domainLookupEnd", domainLookupEnd());
   builder.addNumber("connectStart", connectStart());
   builder.addNumber("connectEnd", connectEnd());
   builder.addNumber("secureConnectionStart", secureConnectionStart());
   builder.addNumber("requestStart", requestStart());
   builder.addNumber("responseStart", responseStart());
   builder.addNumber("responseEnd", responseEnd());
   builder.addNumber("transferSize", transferSize());
   builder.addNumber("encodedBodySize", encodedBodySize());
   builder.addNumber("decodedBodySize", decodedBodySize());
 }
 
 }  // namespace blink