Cleanup Semaphore class.

src/profile-generator.h

 // Copyright 2011 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 294 matching lines @@
   // Limits the number of profiles that can be simultaneously collected.
   static const int kMaxSimultaneousProfiles = 100;
 
  private:
   StringsStorage function_and_resource_names_;
   List<CodeEntry*> code_entries_;
   List<CpuProfile*> finished_profiles_;
 
   // Accessed by VM thread and profile generator thread.
   List<CpuProfile*> current_profiles_;
-  Semaphore* current_profiles_semaphore_;
+  Semaphore current_profiles_semaphore_;
 
   DISALLOW_COPY_AND_ASSIGN(CpuProfilesCollection);
 };
 
 
 class ProfileGenerator {
  public:
   explicit ProfileGenerator(CpuProfilesCollection* profiles);
 
   void RecordTickSample(const TickSample& sample);
@@ skipping 18 matching lines @@
   CodeEntry* gc_entry_;
   CodeEntry* unresolved_entry_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileGenerator);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_PROFILE_GENERATOR_H_