Enable ServerTiming support

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 70 matching lines @@
   double maxAge;
 
   CacheControlHeader()
       : parsed(false),
         containsNoCache(false),
         containsNoStore(false),
         containsMustRevalidate(false),
         maxAge(0.0) {}
 };
 
+struct ServerTimingHeader {
+  String metric;
+  double duration;
+  String description;
+
+  ServerTimingHeader(String metric, double duration, String description)
+      : metric(metric), duration(duration), description(description) {}
+};
+
+using ServerTimingHeaderVector = Vector<std::unique_ptr<ServerTimingHeader>>;
+
 PLATFORM_EXPORT ContentDispositionType getContentDispositionType(const String&);
 PLATFORM_EXPORT bool isValidHTTPHeaderValue(const String&);
 PLATFORM_EXPORT bool isValidHTTPFieldContentRFC7230(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
 // for convenience which consists of Unicode code points. When this method sees
 // non-ASCII characters, it just returns false.
 PLATFORM_EXPORT bool isValidHTTPToken(const String&);
@@ skipping 61 matching lines @@
 // The following values will be outputted:
 // |*first_byte_position| = inclusive position of the first byte of the range
 // |*last_byte_position| = inclusive position of the last byte of the range
 // |*instance_length| = size in bytes of the object requested
 // If this method returns false, then all of the outputs will be -1.
 PLATFORM_EXPORT bool parseContentRangeHeaderFor206(const String& contentRange,
                                                    int64_t* firstBytePosition,
                                                    int64_t* lastBytePosition,
                                                    int64_t* instanceLength);
 
+PLATFORM_EXPORT std::unique_ptr<ServerTimingHeaderVector>
+parseServerTimingHeader(const String&);
+
+PLATFORM_EXPORT String checkDoubleQuotedString(const String&);
+
 }  // namespace blink
 
 #endif