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

Source/wtf/text/AtomicString.h

Index: Source/wtf/text/AtomicString.h
diff --git a/Source/wtf/text/AtomicString.h b/Source/wtf/text/AtomicString.h
index 3b25e4eaf2dcef93224c19c45a40eb4f306cfe52..e6befd7acb7b9c04ae0552f589870eeea8554c56 100644
--- a/Source/wtf/text/AtomicString.h
+++ b/Source/wtf/text/AtomicString.h
@@ -23,6 +23,7 @@
 
 #include "wtf/HashTableDeletedValueType.h"
 #include "wtf/WTFExport.h"
+#include "wtf/text/CString.h"
 #include "wtf/text/WTFString.h"
 
 // Define 'NO_IMPLICIT_ATOMICSTRING' before including this header,
@@ -164,6 +165,10 @@ public:
     static AtomicString fromUTF8(const char*, size_t);
     static AtomicString fromUTF8(const char*);
 
+    CString ascii() const { return m_string.ascii(); }
+    CString latin1() const { return m_string.latin1(); }
+    CString utf8(UTF8ConversionMode mode = LenientUTF8Conversion) const { return m_string.utf8(mode); }
+
 #ifndef NDEBUG
     void show() const;
 #endif