Revert 41938 - Merged third_party/tcmalloc/vendor/src(googleperftools r87) in...

third_party/tcmalloc/chromium/src/stacktrace_x86-inl.h

 // Copyright (c) 2005, Google 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:
 //
 //     * 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
@@ skipping 31 matching lines @@
 
 #include "config.h"
 
 #include <stdlib.h>   // for NULL
 #include <assert.h>
 #if defined(HAVE_SYS_UCONTEXT_H)
 #include <sys/ucontext.h>
 #elif defined(HAVE_UCONTEXT_H)
 #include <ucontext.h>  // for ucontext_t
 #elif defined(HAVE_CYGWIN_SIGNAL_H)
-// cygwin/signal.h has a buglet where it uses pthread_attr_t without
-// #including <pthread.h> itself.  So we have to do it.
-# ifdef HAVE_PTHREAD
-# include <pthread.h>
-# endif
 #include <cygwin/signal.h>
 typedef ucontext ucontext_t;
 #endif
 #ifdef HAVE_STDINT_H
 #include <stdint.h>   // for uintptr_t
 #endif
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
 #ifdef HAVE_MMAP
@@ skipping 459 matching lines @@
       } else {
         // A frame-size of 0 is used to indicate unknown frame size.
         sizes[n] = 0;
       }
       n++;
     }
     sp = next_sp;
   }
   return n;
 }