Make ScriptStreamer and dependents Oilpan friendly.

Source/bindings/core/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 68 matching lines @@
     , m_breakpointsActivated(true)
     , m_isolate(isolate)
     , m_runningNestedMessageLoop(false)
 {
 }
 
 ScriptDebugServer::~ScriptDebugServer()
 {
 }
 
+void ScriptDebugServer::trace(Visitor* visitor)
+{
+}
+
 String ScriptDebugServer::setBreakpoint(const String& sourceID, const ScriptBreakpoint& scriptBreakpoint, int* actualLineNumber, int* actualColumnNumber, bool interstatementLocation)
 {
     v8::HandleScope scope(m_isolate);
     v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext();
     v8::Context::Scope contextScope(debuggerContext);
 
     v8::Local<v8::Object> info = v8::Object::New(m_isolate);
     info->Set(v8AtomicString(m_isolate, "sourceID"), v8String(debuggerContext->GetIsolate(), sourceID));
     info->Set(v8AtomicString(m_isolate, "lineNumber"), v8::Integer::New(debuggerContext->GetIsolate(), scriptBreakpoint.lineNumber));
     info->Set(v8AtomicString(m_isolate, "columnNumber"), v8::Integer::New(debuggerContext->GetIsolate(), scriptBreakpoint.columnNumber));
@@ skipping 637 matching lines @@
             *columnNumber = message->GetStartColumn();
             v8::Handle<v8::StackTrace> messageStackTrace = message->GetStackTrace();
             if (!messageStackTrace.IsEmpty() && messageStackTrace->GetFrameCount() > 0)
                 *stackTrace = createScriptCallStack(m_isolate, messageStackTrace, messageStackTrace->GetFrameCount());
         }
     } else {
         *result = ScriptValue(scriptState, value);
     }
 }
 
-PassOwnPtr<ScriptSourceCode> ScriptDebugServer::preprocess(LocalFrame*, const ScriptSourceCode&)
+ScriptSourceCode ScriptDebugServer::preprocess(LocalFrame*, const ScriptSourceCode&)
 {
-    return PassOwnPtr<ScriptSourceCode>();
+    return ScriptSourceCode();
 }
 
 String ScriptDebugServer::preprocessEventListener(LocalFrame*, const String& source, const String& url, const String& functionName)
 {
     return source;
 }
 
 } // namespace blink