Have CharacterData constructor take a Document reference in argument

Source/core/html/track/WebVTTParser.cpp

 /*
  * Copyright (C) 2011 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 516 matching lines @@
             if (m_currentNode->parentNode())
                 m_currentNode = m_currentNode->parentNode();
         }
         break;
     }
     case WebVTTTokenTypes::TimestampTag: {
         unsigned position = 0;
         String charactersString(StringImpl::create8BitIfPossible(m_token.characters()));
         double time = collectTimeStamp(charactersString, &position);
         if (time != malformedTime)
-            m_currentNode->parserAppendChild(ProcessingInstruction::create(&document, "timestamp", charactersString));
+            m_currentNode->parserAppendChild(ProcessingInstruction::create(document, "timestamp", charactersString));
         break;
     }
     default:
         break;
     }
     m_token.clear();
 }
 
 void WebVTTParser::skipWhiteSpace(const String& line, unsigned* position)
 {
@@ skipping 18 matching lines @@
     unsigned oldPosition = *position;
     while (*position < length && data[*position] != '\r' && data[*position] != '\n')
         (*position)++;
     String line = String::fromUTF8(data + oldPosition, *position - oldPosition);
     skipLineTerminator(data, length, position);
     return line;
 }
 
 }