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..956286b5197fe8d6ce0f5e6918fbba9a2d3d718e 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 +62,22 @@ 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());
+    ASSERT(!m_scriptState->world().isWorkerWorld());

[bashi, 2015/05/13 09:44:34]

I thought it's not safe to compare world between workers, but it may be wrong.

+    ASSERT(!targetScriptState->world().isWorkerWorld());
+    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())