Re-optimize faster after making a pretenuring decision.

src/runtime-profiler.h

 // Copyright 2012 the V8 project authors. 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
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 32 matching lines @@
  public:
   explicit RuntimeProfiler(Isolate* isolate);
 
   void OptimizeNow();
 
   void NotifyICChanged() { any_ic_changed_ = true; }
 
   void AttemptOnStackReplacement(JSFunction* function);
 
  private:
-  void Optimize(JSFunction* function, const char* reason);
-
   bool CodeSizeOKForOSR(Code* shared_code);
 
   Isolate* isolate_;
 
   bool any_ic_changed_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_RUNTIME_PROFILER_H_