Teach WebString about 8 bit strings

Source/core/platform/chromium/support/WebString.cpp

 /*
  * Copyright (C) 2009 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 57 matching lines @@
 {
     ASSERT(m_private);
     return (*m_private)[i];
 }
 
 const WebUChar* WebString::data() const
 {
     return m_private ? const_cast<WebStringPrivate*>(m_private)->characters() : 0;
 }
 
+bool WebString::is8Bit() const
+{
+    return m_private->is8Bit();
+}
+
+const WebLChar* WebString::data8() const
+{
+    return m_private && is8Bit() ? m_private->characters8() : 0;
+}
+
+const WebUChar* WebString::data16() const
+{
+    return m_private && !is8Bit() ? m_private->characters16() : 0;
+}
+
 WebCString WebString::utf8() const
 {
     return WTF::String(m_private).utf8();
 }
 
 WebString WebString::fromUTF8(const char* data, size_t length)
 {
     return WTF::String::fromUTF8(data, length);
 }
 
@@ skipping 46 matching lines @@
 {
     // Take care to handle the case where m_private == p
     if (p)
         p->ref();
     if (m_private)
         m_private->deref();
     m_private = p;
 }
 
 } // namespace WebKit