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

Source/bindings/v8/V8DOMWrapper.cpp

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 24 matching lines @@
 #include "V8HTMLDocument.h"
 #include "V8Window.h"
 #include "bindings/v8/V8Binding.h"
 #include "bindings/v8/V8HiddenPropertyName.h"
 #include "bindings/v8/V8ObjectConstructor.h"
 #include "bindings/v8/V8PerContextData.h"
 #include "bindings/v8/V8ScriptRunner.h"
 
 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.
     static int shadowTemplateUniqueKey;
     WrapperWorldType currentWorldType = worldType(isolate);
     V8PerIsolateData* data = V8PerIsolateData::from(isolate);
     v8::Handle<v8::FunctionTemplate> shadowTemplate = data->privateTemplateIfExists(currentWorldType, &shadowTemplateUniqueKey);
     if (shadowTemplate.IsEmpty()) {
         shadowTemplate = v8::FunctionTemplate::New();
         if (shadowTemplate.IsEmpty())
@@ skipping 74 matching lines @@
 
     v8::Handle<v8::Object> wrapper = v8::Handle<v8::Object>::Cast(value);
     ASSERT(wrapper->InternalFieldCount() >= v8DefaultWrapperInternalFieldCount);
     ASSERT(wrapper->GetAlignedPointerFromInternalField(v8DOMWrapperObjectIndex));
 
     const WrapperTypeInfo* typeInfo = static_cast<const WrapperTypeInfo*>(wrapper->GetAlignedPointerFromInternalField(v8DOMWrapperTypeIndex));
     return typeInfo == type;
 }
 
 }  // namespace WebCore