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

Source/modules/mediasource/MediaSourceBase.cpp

 /*
  * Copyright (C) 2013 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 153 matching lines @@
     m_attachedElement->durationChanged(duration);
     m_webMediaSource->setDuration(duration);
 }
 
 
 void MediaSourceBase::setReadyState(const AtomicString& state)
 {
     ASSERT(state == openKeyword() || state == closedKeyword() || state == endedKeyword());
 
     AtomicString oldState = readyState();
-    WTF_LOG(Media, "MediaSourceBase::setReadyState() %p : %s -> %s", this, oldState.string().ascii().data(), state.string().ascii().data());
+    WTF_LOG(Media, "MediaSourceBase::setReadyState() %p : %s -> %s", this, oldState.ascii().data(), state.ascii().data());
 
     if (state == closedKeyword()) {
         m_webMediaSource.clear();
         m_attachedElement = 0;
     }
 
     if (oldState == state)
         return;
 
     m_readyState = state;
@@ skipping 124 matching lines @@
 {
     return ActiveDOMObject::executionContext();
 }
 
 URLRegistry& MediaSourceBase::registry() const
 {
     return MediaSourceRegistry::registry();
 }
 
 }