IDL: Add any support to IDL dictionary and use it in CustomEventInit

Source/bindings/core/v8/ScriptValue.cpp

Index: Source/bindings/core/v8/ScriptValue.cpp
diff --git a/Source/bindings/core/v8/ScriptValue.cpp b/Source/bindings/core/v8/ScriptValue.cpp
index 0371f67bad8694b2590b9413eea650bd6309864b..94716750ebaa06dda614e3cc44af42ef0b0f1283 100644
--- a/Source/bindings/core/v8/ScriptValue.cpp
+++ b/Source/bindings/core/v8/ScriptValue.cpp
@@ -32,6 +32,7 @@
 #include "bindings/core/v8/ScriptValue.h"
 
 #include "bindings/core/v8/ScriptState.h"
+#include "bindings/core/v8/SerializedScriptValueFactory.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "platform/JSONValues.h"
 
@@ -61,6 +62,20 @@ v8::Local<v8::Value> ScriptValue::v8ValueUnsafe() const
     return m_value->newLocal(isolate());
 }
 
+v8::Local<v8::Value> ScriptValue::v8ValueFor(ScriptState* targetScriptState)
+{
+    if (isEmpty())
+        return v8::Local<v8::Value>();
+    v8::Isolate* isolate = targetScriptState->isolate();
+    if (&m_scriptState->world() == &targetScriptState->world())
+        return m_value->newLocal(isolate);
+
+    ASSERT(isolate->InContext());
+    v8::Local<v8::Value> value = m_value->newLocal(isolate);
+    RefPtr<SerializedScriptValue> serialized = SerializedScriptValueFactory::instance().createAndSwallowExceptions(isolate, value);
+    return serialized->deserialize();
+}
+
 bool ScriptValue::toString(String& result) const
 {
     if (isEmpty())