Implement nextHopProtocol in PerformanceResourceTiming and PerformanceNavigationTiming.

third_party/WebKit/Source/platform/loader/fetch/ResourceResponse.cpp

Index: third_party/WebKit/Source/platform/loader/fetch/ResourceResponse.cpp
diff --git a/third_party/WebKit/Source/platform/loader/fetch/ResourceResponse.cpp b/third_party/WebKit/Source/platform/loader/fetch/ResourceResponse.cpp
index ff94534708aa30acb2cff7c44414da04d991bea6..ae852e1fb59ed829239d1fc8f6c03b5fb494f04a 100644
--- a/third_party/WebKit/Source/platform/loader/fetch/ResourceResponse.cpp
+++ b/third_party/WebKit/Source/platform/loader/fetch/ResourceResponse.cpp
@@ -101,6 +101,8 @@ ResourceResponse::ResourceResponse()
       last_modified_(0.0),
       app_cache_id_(0),
       response_time_(0),
+      connection_info_(
+          net::HttpResponseInfo::ConnectionInfo::CONNECTION_INFO_UNKNOWN),
       encoded_data_length_(0),
       encoded_body_length_(0),
       decoded_body_length_(0) {}
@@ -572,6 +574,14 @@ KURL ResourceResponse::OriginalURLViaServiceWorker() const {
   return url_list_via_service_worker_.back();
 }
 
+AtomicString ResourceResponse::ConnectionInfoString() const {
+  std::string connection_info_string =
+      net::HttpResponseInfo::ConnectionInfoToString(connection_info_);
+  return AtomicString(
+      reinterpret_cast<const LChar*>(connection_info_string.data()),
+      connection_info_string.length());
+}
+
 void ResourceResponse::SetEncodedDataLength(long long value) {
   encoded_data_length_ = value;
 }