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

Source/modules/websockets/MainThreadWebSocketChannel.cpp

 /*
  * Copyright (C) 2011, 2012 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 110 matching lines @@
         return "";
     String extensions = m_handshake->acceptedExtensions();
     if (extensions.isNull())
         return "";
     return extensions;
 }
 
 WebSocketChannel::SendResult MainThreadWebSocketChannel::send(const String& message)
 {
     WTF_LOG(Network, "MainThreadWebSocketChannel %p send() Sending String '%s'", this, message.utf8().data());
-    CString utf8 = message.utf8(String::StrictConversionReplacingUnpairedSurrogatesWithFFFD);
+    CString utf8 = message.utf8(StrictUTF8ConversionReplacingUnpairedSurrogatesWithFFFD);
     enqueueTextFrame(utf8);
     processOutgoingFrameQueue();
     // m_channel->send() may happen later, thus it's not always possible to know whether
     // the message has been sent to the socket successfully. In this case, we have no choice
     // but to return SendSuccess.
     return WebSocketChannel::SendSuccess;
 }
 
 WebSocketChannel::SendResult MainThreadWebSocketChannel::send(const ArrayBuffer& binaryData, unsigned byteOffset, unsigned byteLength)
 {
@@ skipping 672 matching lines @@
     }
 
     Vector<char> frameData;
     frame.makeFrameData(frameData);
 
     m_perMessageDeflate.resetDeflateBuffer();
     return m_handle->send(frameData.data(), frameData.size());
 }
 
 } // namespace WebCore