[Bindings] Move and remove some private symbols from V8HiddenValue

third_party/WebKit/Source/modules/serviceworkers/ForeignFetchEvent.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/serviceworkers/ForeignFetchEvent.h"
 
 #include "bindings/core/v8/ToV8.h"
-#include "bindings/core/v8/V8HiddenValue.h"
+#include "bindings/core/v8/V8PrivateProperty.h"
 #include "modules/fetch/Request.h"
 #include "modules/serviceworkers/ServiceWorkerGlobalScope.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 ForeignFetchEvent* ForeignFetchEvent::create(
     ScriptState* scriptState,
     const AtomicString& type,
     const ForeignFetchEventInit& initializer) {
@@ skipping 50 matching lines @@
     if (event.IsEmpty()) {
       // |toV8| can return an empty handle when the worker is terminating.
       // We don't want the renderer to crash in such cases.
       // TODO(yhirano): Replace this branch with an assertion when the
       // graceful shutdown mechanism is introduced.
       return;
     }
     DCHECK(event->IsObject());
     // Sets a hidden value in order to teach V8 the dependency from
     // the event to the request.
-    V8HiddenValue::setHiddenValue(
-        scriptState, event.As<v8::Object>(),
-        V8HiddenValue::requestInFetchEvent(scriptState->isolate()), request);
+    V8PrivateProperty::getFetchEventRequest(scriptState->isolate())
+        .set(event.As<v8::Object>(), request);
     // From the same reason as above, setHiddenValue can return false.
     // TODO(yhirano): Add an assertion that it returns true once the
     // graceful shutdown mechanism is introduced.
   }
 }
 
 DEFINE_TRACE(ForeignFetchEvent) {
   visitor->trace(m_observer);
   visitor->trace(m_request);
   ExtendableEvent::trace(visitor);
 }
 
 }  // namespace blink