Fixing a few bugs to make the --log-state-change option work.

src/log.h

 // Copyright 2006-2008 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 206 matching lines @@
   // Emits the source code of a regexp. Used by regexp events.
   static void LogRegExpSource(Handle<JSRegExp> regexp);
 
   static void LogString(Handle<String> str, bool show_impl_info);
 
   // Emits a profiler tick event. Used by the profiler thread.
   static void TickEvent(TickSample* sample, bool overflow);
 
   static void ApiEvent(const char* name, ...);
 
+  // Logs a StringEvent regardless of whether FLAG_log is true.
+  static void UncheckedStringEvent(const char* name, const char* value);
+
   // When logging is active, logfile_ refers the file
   // events are written to.
   static FILE* logfile_;
 
   // The sampler used by the profiler and the sliding state window.
   static Ticker* ticker_;
 
   // When the statistical profile is active, profiler_
   // points to a Profiler, that handles collection
   // of samples.
@@ skipping 17 matching lines @@
   friend class Profiler;
   friend class SlidingStateWindow;
   friend class VMState;
 #endif
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_LOG_H_