Oilpan: have Console be on the heap by default.

Source/core/frame/Console.cpp

 /*
  * Copyright (C) 2007 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 41 matching lines @@
 }
 
 Console::~Console()
 {
 }
 
 DEFINE_TRACE(Console)
 {
     ConsoleBase::trace(visitor);
     DOMWindowProperty::trace(visitor);
-#if ENABLE(OILPAN)
     HeapSupplementable<Console>::trace(visitor);
-#endif
 }
 
 ExecutionContext* Console::context()
 {
     if (!frame())
         return 0;
     return frame()->document();
 }
 
 void Console::reportMessageToConsole(PassRefPtrWillBeRawPtr<ConsoleMessage> consoleMessage)
 {
     if (!frame())
         return;
 
     frame()->console().addMessage(consoleMessage);
 }
 
 } // namespace blink