Migrate WTF::HashMap::add() to ::insert()

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

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2009 Google 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
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 54 matching lines @@
   const_iterator find(const AtomicString& k) const { return m_headers.find(k); }
   void clear() { m_headers.clear(); }
   bool contains(const AtomicString& k) const { return m_headers.contains(k); }
   const AtomicString& get(const AtomicString& k) const {
     return m_headers.get(k);
   }
   AddResult set(const AtomicString& k, const AtomicString& v) {
     return m_headers.set(k, v);
   }
   AddResult add(const AtomicString& k, const AtomicString& v) {
-    return m_headers.add(k, v);
+    return m_headers.insert(k, v);
   }
   void remove(const AtomicString& k) { m_headers.erase(k); }
   bool operator!=(const HTTPHeaderMap& rhs) const {
     return m_headers != rhs.m_headers;
   }
   bool operator==(const HTTPHeaderMap& rhs) const {
     return m_headers == rhs.m_headers;
   }
 
  private:
   HashMap<AtomicString, AtomicString, CaseFoldingHash> m_headers;
 };
 
 }  // namespace blink
 
 #endif  // HTTPHeaderMap_h