Oilpan: fix build after r187472.

Source/modules/push_messaging/PushManager.cpp

 // Copyright 2014 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 "config.h"
 #include "modules/push_messaging/PushManager.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
@@ skipping 53 matching lines @@
     }
 
     return promise;
 }
 
 ScriptPromise PushManager::getRegistration(ScriptState* scriptState)
 {
     if (!m_registration->active())
         return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(AbortError, "Registration failed - no active Service Worker"));
 
-    RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
 
     pushProvider()->getRegistration(m_registration->webRegistration(), new PushRegistrationCallbacks(resolver, m_registration));
     return promise;
 }
 
 ScriptPromise PushManager::hasPermission(ScriptState* scriptState)
 {
     if (scriptState->executionContext()->isDocument()) {
         Document* document = toDocument(scriptState->executionContext());
         // FIXME: add test coverage for this condition - https://crbug.com/440431
         if (!document->domWindow() || !document->frame())
             return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(InvalidStateError, "Document is detached from window."));
     }
 
     RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
     pushProvider()->getPermissionStatus(m_registration->webRegistration(), new PushPermissionStatusCallbacks(resolver));
     return promise;
 }
 
 void PushManager::trace(Visitor* visitor)
 {
     visitor->trace(m_registration);
 }
 
 } // namespace blink