Merge google-perftools r109 (the current contents of third_party/tcmalloc/vendor)

third_party/tcmalloc/chromium/src/tests/sampling_test.cc

 // Copyright (c) 2008, 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 27 matching lines @@
 
 #include "config_for_unittests.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <string>
 #include "base/logging.h"
 #include <google/malloc_extension.h>
 
 using std::string;
 
+extern "C" void* AllocateAllocate() ATTRIBUTE_NOINLINE;
+
 extern "C" void* AllocateAllocate() {
   // The VLOG's are mostly to discourage inlining
   VLOG(1, "Allocating some more");
   void* p = malloc(10000);
   VLOG(1, "Done allocating");
   return p;
 }
 
 static void WriteStringToFile(const string& s, const string& filename) {
   FILE* fp = fopen(filename.c_str(), "w");
@@ skipping 13 matching lines @@
   string s;
   MallocExtension::instance()->GetHeapSample(&s);
   WriteStringToFile(s, string(argv[1]) + ".heap");
 
   s.clear();
   MallocExtension::instance()->GetHeapGrowthStacks(&s);
   WriteStringToFile(s, string(argv[1]) + ".growth");
 
   return 0;
 }