Migrate WTF::HashSet::add() to ::insert() [part 1 of N]

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

 /*
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
  * 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:
@@ skipping 746 matching lines @@
         pragmaValue.lower().contains(noCacheDirective);
   }
   return cacheControlHeader;
 }
 
 void parseCommaDelimitedHeader(const String& headerValue,
                                CommaDelimitedHeaderSet& headerSet) {
   Vector<String> results;
   headerValue.split(",", results);
   for (auto& value : results)
-    headerSet.add(value.stripWhiteSpace(isWhitespace));
+    headerSet.insert(value.stripWhiteSpace(isWhitespace));
 }
 
 bool parseSuboriginHeader(const String& header,
                           Suborigin* suborigin,
                           WTF::Vector<String>& messages) {
   Vector<String> headers;
   header.split(',', true, headers);
 
   if (headers.size() > 1)
     messages.push_back(
@@ skipping 92 matching lines @@
   StringBuilder sb;
   sb.append("[");
   sb.append(header);
   sb.append("]");
   std::unique_ptr<JSONValue> headerValue =
       parseJSON(sb.toString(), maxParseDepth);
   return JSONArray::from(std::move(headerValue));
 }
 
 }  // namespace blink