Updates to Server-Timing in accordance with with spec changes

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

 /*
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 67 matching lines @@
   CacheControlHeader()
       : parsed(false),
         contains_no_cache(false),
         contains_no_store(false),
         contains_must_revalidate(false),
         max_age(0.0) {}
 };
 
 struct ServerTimingHeader {
   String metric;
-  double duration;
+  double value;
   String description;
 
-  ServerTimingHeader(String metric, double duration, String description)
-      : metric(metric), duration(duration), description(description) {}
+  ServerTimingHeader(String metric, double value, String description)
+      : metric(metric), value(value), description(description) {}
 };
 
 using ServerTimingHeaderVector = Vector<std::unique_ptr<ServerTimingHeader>>;
 
 PLATFORM_EXPORT bool IsContentDispositionAttachment(const String&);
 PLATFORM_EXPORT bool IsValidHTTPHeaderValue(const String&);
 // Checks whether the given string conforms to the |token| ABNF production
 // defined in the RFC 7230 or not.
 //
 // The ABNF is for validating octets, but this method takes a String instance
@@ skipping 80 matching lines @@
                                                    int64_t* instance_length);
 
 PLATFORM_EXPORT std::unique_ptr<ServerTimingHeaderVector>
 ParseServerTimingHeader(const String&);
 
 using Mode = blink::ParsedContentType::Mode;
 
 }  // namespace blink
 
 #endif