Add Dictionary get() method for AtomicString values and use it

Source/bindings/v8/Dictionary.h

 /*
  * Copyright (C) 2010 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:
  *
  * 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
@@ skipping 54 matching lines @@
     Dictionary& operator=(const Dictionary&);
 
     bool isObject() const;
     bool isUndefinedOrNull() const;
 
     bool get(const String&, bool&) const;
     bool get(const String&, int32_t&) const;
     bool get(const String&, double&, bool& hasValue) const;
     bool get(const String&, double&) const;
     bool get(const String&, String&) const;
+    bool get(const String&, AtomicString&) const;
     bool get(const String&, ScriptValue&) const;
     bool get(const String&, short&) const;
     bool get(const String&, unsigned short&) const;
     bool get(const String&, unsigned&) const;
     bool get(const String&, unsigned long&) const;
     bool get(const String&, unsigned long long&) const;
     bool get(const String&, RefPtr<DOMWindow>&) const;
     bool get(const String&, RefPtr<Storage>&) const;
     bool get(const String&, MessagePortArray&) const;
     bool get(const String&, RefPtr<Uint8Array>&) const;
@@ skipping 69 matching lines @@
     template<typename IntegralType>
     bool convert(ConversionContext &, const String&, IntegralType&) const;
     bool convert(ConversionContext &, const String&, MessagePortArray&) const;
     bool convert(ConversionContext &, const String&, HashSet<AtomicString>&) const;
     bool convert(ConversionContext &, const String&, Dictionary&) const;
     bool convert(ConversionContext &, const String&, Vector<String>&) const;
     bool convert(ConversionContext &, const String&, ArrayValue&) const;
     template<typename T>
     bool convert(ConversionContext &, const String&, RefPtr<T>&) const;
 
+    template<typename StringType>
+    bool getStringType(const String&, StringType&) const;
+
     bool getOwnPropertiesAsStringHashMap(HashMap<String, String>&) const;
     bool getOwnPropertyNames(Vector<String>&) const;
 
     bool getWithUndefinedOrNullCheck(const String&, String&) const;
 
     bool hasProperty(const String&) const;
 
     // Only allow inline allocation.
     void* operator new(size_t, NotNullTag, void* location) { return location; }
 
@@ skipping 143 matching lines @@
     if (context.isNullable() && WebCore::isUndefinedOrNull(v8Value))
         return true;
 
     context.throwTypeError(ExceptionMessages::incorrectPropertyType(key, "does not have a " + context.typeName() + " type."));
     return false;
 }
 
 }
 
 #endif // Dictionary_h