text: 
  /*
   * Copyright 2011 Google Inc.
   *
   * Use of this source code is governed by a BSD-style license that can be
   * found in the LICENSE file.
   */
  #ifndef SkBenchSysTimer_DEFINED
  #define SkBenchSysTimer_DEFINED
  
  //Time
  #include <mach/mach.h>
  #include <mach/mach_time.h>
  
  class BenchSysTimer {
  public:
      void startWall();
      void startCpu();
      double endCpu();
      double endWall();
  private:
      time_value_t fStartCpu;
      uint64_t fStartWall;
  };
  
  #endif
  