Add ascii() / latin1() / utf8() methods to AtomicString to avoid having to call string()

Source/core/html/MediaFragmentURIParser.cpp

 /*
  * Copyright (C) 2011, 2012 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
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 116 matching lines @@
         //     from the list.
         String name = decodeURLEscapeSequences(fragmentString.substring(parameterStart, equalOffset - parameterStart));
         String value;
         if (equalOffset != parameterEnd)
             value = decodeURLEscapeSequences(fragmentString.substring(equalOffset + 1, parameterEnd - equalOffset - 1));
 
         //  b. Convert name and value to Unicode strings by interpreting them as UTF-8. If either
         //     name or value are not valid UTF-8 strings, then remove the name-value pair from the list.
         bool validUTF8 = true;
         if (!name.isEmpty()) {
-            name = name.utf8(String::StrictConversion).data();
+            name = name.utf8(StrictUTF8Conversion).data();
             validUTF8 = !name.isEmpty();
         }
         if (validUTF8 && !value.isEmpty()) {
-            value = value.utf8(String::StrictConversion).data();
+            value = value.utf8(StrictUTF8Conversion).data();
             validUTF8 = !value.isEmpty();
         }
 
         if (validUTF8)
             m_fragments.append(std::make_pair(name, value));
 
         offset = parameterEnd + 1;
     }
 }
 
@@ skipping 158 matching lines @@
     }
 
     if (offset < length && timeString[offset] == '.')
         fraction = collectFraction(timeString, length, offset).toDouble();
 
     time = (value1 * secondsPerHour) + (value2 * secondsPerMinute) + value3 + fraction;
     return true;
 }
 
 }