Simpler return value of HashTable::add/HashMap:add and others

Source/platform/exported/WebHTTPLoadInfo.cpp

 /*
  * Copyright (C) 2010 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 87 matching lines @@
 {
     ASSERT(!m_private.isNull());
     m_private->encodedDataLength = encodedDataLength;
 }
 
 static void addHeader(HTTPHeaderMap* map, const WebString& name, const WebString& value)
 {
     HTTPHeaderMap::AddResult result = map->add(name, value);
     // It is important that values are separated by '\n', not comma, otherwise Set-Cookie header is not parseable.
     if (!result.isNewEntry)
-        result.iterator->value = result.iterator->value + "\n" + String(value);
+        result.storedValue->value = result.storedValue->value + "\n" + String(value);
 }
 
 void WebHTTPLoadInfo::addRequestHeader(const WebString& name, const WebString& value)
 {
     ASSERT(!m_private.isNull());
     addHeader(&m_private->requestHeaders, name, value);
 }
 
 void WebHTTPLoadInfo::addResponseHeader(const WebString& name, const WebString& value)
 {
@@ skipping 19 matching lines @@
     return m_private->responseHeadersText;
 }
 
 void WebHTTPLoadInfo::setResponseHeadersText(const WebString& headersText)
 {
     ASSERT(!m_private.isNull());
     m_private->responseHeadersText = headersText;
 }
 
 } // namespace blink