Update the tcmalloc chromium branch to r144 (gperftools 2.0), and merge chromium-specific changes.

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

 // 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 17 matching lines @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "config_for_unittests.h"
 #ifdef HAVE_EXECINFO_H
 #include <execinfo.h>
 #endif
 #include <stdio.h>
 #include <stdlib.h>
 #include "base/commandlineflags.h"
 #include "base/logging.h"
-#include <google/stacktrace.h>
+#include <gperftools/stacktrace.h>
 
 namespace {
 
 // Obtain a backtrace, verify that the expected callers are present in the
 // backtrace, and maybe print the backtrace to stdout.
 
 // The sequence of functions whose return addresses we expect to see in the
 // backtrace.
 const int BACKTRACE_STEPS = 6;
 
@@ skipping 136 matching lines @@
 }
 
 }  // namespace
 //-----------------------------------------------------------------------//
 
 int main(int argc, char ** argv) {
   CheckStackTrace(0);
   printf("PASS\n");
   return 0;
 }