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

third_party/tcmalloc/chromium/src/heap-checker-bcad.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 27 matching lines @@
 //
 // This file must be the last library any binary links against.
 // Otherwise, the heap checker may not be able to run early enough to
 // catalog all the global objects in your program.  If this happens,
 // and later in the program you allocate memory and have one of these
 // "uncataloged" global objects point to it, the heap checker will
 // consider that allocation to be a leak, even though it's not (since
 // the allocated object is reachable from global data and hence "live").
 
 #include <stdlib.h>      // for abort()
-#include <google/malloc_extension.h>
+#include <gperftools/malloc_extension.h>
 
 // A dummy variable to refer from heap-checker.cc.  This is to make
 // sure this file is not optimized out by the linker.
 bool heap_leak_checker_bcad_variable;
 
 extern void HeapLeakChecker_AfterDestructors();  // in heap-checker.cc
 
 // A helper class to ensure that some components of heap leak checking
 // can happen before construction and after destruction
 // of all global/static objects.
@@ skipping 24 matching lines @@
  private:
   // Counter of constructions/destructions of objects of this class
   // (just in case there are more than one of them).
   static int count_;
 };
 
 int HeapLeakCheckerGlobalPrePost::count_ = 0;
 
 // The early-construction/late-destruction global object.
 static const HeapLeakCheckerGlobalPrePost heap_leak_checker_global_pre_post;