ScriptPromise should understand the ScriptState from which the ScriptPromise is generated

Source/bindings/v8/ScriptPromiseResolverWithContext.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 "bindings/v8/ScriptPromiseResolverWithContext.h"
 
 #include "bindings/v8/V8PerIsolateData.h"
 #include "core/dom/ExecutionContextTask.h"
 #include "wtf/PassOwnPtr.h"
@@ skipping 24 matching lines @@
     RefPtr<ScriptState> m_scriptState;
 };
 
 } // namespace
 
 ScriptPromiseResolverWithContext::ScriptPromiseResolverWithContext(ScriptState* scriptState)
     : ActiveDOMObject(scriptState->executionContext())
     , m_state(Pending)
     , m_scriptState(scriptState)
     , m_timer(this, &ScriptPromiseResolverWithContext::onTimerFired)
-    , m_resolver(ScriptPromiseResolver::create(m_scriptState->executionContext())) { }
+    , m_resolver(ScriptPromiseResolver::create(m_scriptState.get()))
+{
+}
 
 void ScriptPromiseResolverWithContext::suspend()
 {
     m_timer.stop();
 }
 
 void ScriptPromiseResolverWithContext::resume()
 {
     if (m_state == Resolving || m_state == Rejecting)
         m_timer.startOneShot(0, FROM_HERE);
@@ skipping 42 matching lines @@
     m_resolver.clear();
     m_value.clear();
     if (state == Resolving || state == Rejecting) {
         // |ref| was called in |resolveOrReject|.
         deref();
     }
     // |this| may be deleted here.
 }
 
 } // namespace WebCore