Add an ASSERT about cross-world wrapper leakage into ScriptValue

Source/bindings/v8/ScriptPromise.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 76 matching lines @@
             // the stack is exhausted.
             return ScriptPromise();
         }
     }
     if (!v8OnRejected.IsEmpty())
         resultPromise = resultPromise->Catch(v8OnRejected);
 
     return ScriptPromise(m_scriptState.get(), resultPromise);
 }
 
-ScriptPromise ScriptPromise::cast(const ScriptValue& value)
+ScriptPromise ScriptPromise::cast(ScriptState* scriptState, const ScriptValue& value)
 {
-    return ScriptPromise::cast(value.scriptState(), value.v8Value());
+    return ScriptPromise::cast(scriptState, value.v8Value());
 }
 
 ScriptPromise ScriptPromise::cast(ScriptState* scriptState, v8::Handle<v8::Value> value)
 {
     if (value.IsEmpty())
         return ScriptPromise();
     if (value->IsPromise()) {
         return ScriptPromise(scriptState, value);
     }
     RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
     resolver->resolve(value);
     return promise;
 }
 
-ScriptPromise ScriptPromise::reject(const ScriptValue& value)
+ScriptPromise ScriptPromise::reject(ScriptState* scriptState, const ScriptValue& value)
 {
-    return ScriptPromise::reject(value.scriptState(), value.v8Value());
+    return ScriptPromise::reject(scriptState, value.v8Value());
 }
 
 ScriptPromise ScriptPromise::reject(ScriptState* scriptState, v8::Handle<v8::Value> value)
 {
     if (value.IsEmpty())
         return ScriptPromise();
     RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
     resolver->reject(value);
     return promise;
 }
 
 ScriptPromise ScriptPromise::rejectWithDOMException(ScriptState* scriptState, PassRefPtrWillBeRawPtr<DOMException> exception)
 {
     ASSERT(scriptState->isolate()->InContext());
     return reject(scriptState, ToV8Value<WithScriptState, v8::Handle<v8::Object> >::toV8Value(exception, scriptState->context()->Global(), scriptState->isolate()));
 }
 
 } // namespace WebCore