Pass isolate to v8::Null() function when possible

Source/bindings/v8/ScriptDebugServer.cpp

 /*
  * Copyright (c) 2010-2011 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 312 matching lines @@
         return PassRefPtr<JavaScriptCallFrame>();
     return JavaScriptCallFrame::create(v8::Debug::GetDebugContext(), v8::Handle<v8::Object>::Cast(currentCallFrameV8));
 }
 
 ScriptValue ScriptDebugServer::currentCallFrame()
 {
     ASSERT(isPaused());
     v8::HandleScope handleScope(m_isolate);
     RefPtr<JavaScriptCallFrame> currentCallFrame = wrapCallFrames(m_executionState.newLocal(m_isolate), -1);
     if (!currentCallFrame)
-        return ScriptValue(v8::Null());
+        return ScriptValue(v8::Null(m_isolate));
     v8::Context::Scope contextScope(m_pausedContext);
     return ScriptValue(toV8(currentCallFrame.release(), v8::Handle<v8::Object>(), m_pausedContext->GetIsolate()));
 }
 
 void ScriptDebugServer::interruptAndRun(PassOwnPtr<Task> task, v8::Isolate* isolate)
 {
     v8::Debug::DebugBreakForCommand(new ClientDataImpl(task), isolate);
 }
 
 void ScriptDebugServer::runPendingTasks()
@@ skipping 270 matching lines @@
 {
     return PassOwnPtr<ScriptSourceCode>();
 }
 
 String ScriptDebugServer::preprocessEventListener(Frame*, const String& source, const String& url, const String& functionName)
 {
     return source;
 }
 
 } // namespace WebCore