Remove V8TestingScope::create

Source/bindings/v8/IDBBindingUtilitiesTest.cpp

Index: Source/bindings/v8/IDBBindingUtilitiesTest.cpp
diff --git a/Source/bindings/v8/IDBBindingUtilitiesTest.cpp b/Source/bindings/v8/IDBBindingUtilitiesTest.cpp
index 9ecbfded0df68d91b795ed441386c7f28feebc6e..e9f48d5fae5f77f1fb283bc1714a5f2f87b9ed57 100644
--- a/Source/bindings/v8/IDBBindingUtilitiesTest.cpp
+++ b/Source/bindings/v8/IDBBindingUtilitiesTest.cpp
@@ -90,11 +90,11 @@ void checkKeyPathNumberValue(v8::Isolate* isolate, const ScriptValue& value, con
 class IDBKeyFromValueAndKeyPathTest : public testing::Test {
 public:
     IDBKeyFromValueAndKeyPathTest()
-        : m_scope(V8TestingScope::create(v8::Isolate::GetCurrent()))
+        : m_scope(v8::Isolate::GetCurrent())
     {
     }
 private:
-    OwnPtr<V8TestingScope> m_scope;
+    V8TestingScope m_scope;
 };
 
 TEST_F(IDBKeyFromValueAndKeyPathTest, TopLevelPropertyStringValue)