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

third_party/tcmalloc/chromium/src/stacktrace_win32-inl.h

 // 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 29 matching lines @@
 // version of stacktrace_x86-inl.h that has heuristic support for
 // dealing with FPO, similar to what WinDbg does (see
 // http://www.nynaeve.net/?p=97).
 //
 // The solution we've ended up doing is to call the undocumented
 // windows function RtlCaptureStackBackTrace, which probably doesn't
 // work with FPO but at least is fast, and doesn't require a symbol
 // server.
 //
 // This code is inspired by a patch from David Vitek:
-//   http://code.google.com/p/google-perftools/issues/detail?id=83
+//   http://code.google.com/p/gperftools/issues/detail?id=83
 
 #ifndef BASE_STACKTRACE_WIN32_INL_H_
 #define BASE_STACKTRACE_WIN32_INL_H_
 // Note: this file is included into stacktrace.cc more than once.
 // Anything that should only be defined once should be here:
 
 #include "config.h"
 #include <windows.h>    // for GetProcAddress and GetModuleHandle
 #include <assert.h>
 
@@ skipping 20 matching lines @@
 }
 
 PERFTOOLS_DLL_DECL int GetStackFrames(void** /* pcs */,
                                       int* /* sizes */,
                                       int /* max_depth */,
                                       int /* skip_count */) {
   assert(0 == "Not yet implemented");
   return 0;
 }
 #endif  // BASE_STACKTRACE_WIN32_INL_H_