Reland: Reland: Implement new Blink IDL attribute [SetReference]

Source/bindings/v8/V8DOMWrapper.cpp

Index: Source/bindings/v8/V8DOMWrapper.cpp
diff --git a/Source/bindings/v8/V8DOMWrapper.cpp b/Source/bindings/v8/V8DOMWrapper.cpp
index a280a768a41b4f48d29f114fdd89d8d4b4ad2ca3..d30f7cd4f6444213cb061e3dd2fe1c97507609dd 100644
--- a/Source/bindings/v8/V8DOMWrapper.cpp
+++ b/Source/bindings/v8/V8DOMWrapper.cpp
@@ -42,41 +42,6 @@
 
 namespace WebCore {
 
-class V8WrapperInstantiationScope {
-public:
-    V8WrapperInstantiationScope(v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
-        : m_didEnterContext(false)
-        , m_context(v8::Context::GetCurrent())
-    {
-        // FIXME: Remove all empty creationContexts from caller sites.
-        // If a creationContext is empty, we will end up creating a new object
-        // in the context currently entered. This is wrong.
-        if (creationContext.IsEmpty())
-            return;
-        v8::Handle<v8::Context> contextForWrapper = creationContext->CreationContext();
-        // For performance, we enter the context only if the currently running context
-        // is different from the context that we are about to enter.
-        if (contextForWrapper == m_context)
-            return;
-        m_context = v8::Local<v8::Context>::New(isolate, contextForWrapper);
-        m_didEnterContext = true;
-        m_context->Enter();
-    }
-
-    ~V8WrapperInstantiationScope()
-    {
-        if (!m_didEnterContext)
-            return;
-        m_context->Exit();
-    }
-
-    v8::Handle<v8::Context> context() const { return m_context; }
-
-private:
-    bool m_didEnterContext;
-    v8::Handle<v8::Context> m_context;
-};
-
 static v8::Local<v8::Object> wrapInShadowTemplate(v8::Local<v8::Object> wrapper, Node* impl, v8::Isolate* isolate)
 {
     // This is only for getting a unique pointer which we can pass to privateTemplate.