Avoid calling Isolate::GetCurrent() in V8PerContextData

Source/bindings/v8/V8PerContextData.h

Index: Source/bindings/v8/V8PerContextData.h
diff --git a/Source/bindings/v8/V8PerContextData.h b/Source/bindings/v8/V8PerContextData.h
index ad46ce540c16620e696f9914f5287ae920f16ad5..9724bd1584b3012c84257510efd85aecf7a55efd 100644
--- a/Source/bindings/v8/V8PerContextData.h
+++ b/Source/bindings/v8/V8PerContextData.h
@@ -79,14 +79,14 @@ public:
     v8::Local<v8::Object> createWrapperFromCache(const WrapperTypeInfo* type)
     {
         UnsafePersistent<v8::Object> boilerplate = m_wrapperBoilerplates.get(type);
-        return !boilerplate.isEmpty() ? boilerplate.newLocal(v8::Isolate::GetCurrent())->Clone() : createWrapperFromCacheSlowCase(type);
+        return !boilerplate.isEmpty() ? boilerplate.newLocal(m_isolate)->Clone() : createWrapperFromCacheSlowCase(type);
     }
 
     v8::Local<v8::Function> constructorForType(const WrapperTypeInfo* type)
     {
         UnsafePersistent<v8::Function> function = m_constructorMap.get(type);
         if (!function.isEmpty())
-            return function.newLocal(v8::Isolate::GetCurrent());
+            return function.newLocal(m_isolate);
         return constructorForTypeSlowCase(type);
     }