Update the tcmalloc vendor branch to r144 (gperftools 2.0).

third_party/tcmalloc/vendor/src/windows/config.h

 /* A manual version of config.h fit for windows machines. */
 
 /* Sometimes we accidentally #include this config.h instead of the one
    in .. -- this is particularly true for msys/mingw, which uses the
    unix config.h but also runs code in the windows directory.
    */
 #ifdef __MINGW32__
 #include "../config.h"
 #define GOOGLE_PERFTOOLS_WINDOWS_CONFIG_H_
 #endif
@@ skipping 195 matching lines @@
    */
 #undef LT_OBJDIR
 
 /* Define to 'volatile' if __malloc_hook is declared volatile */
 #undef MALLOC_HOOK_MAYBE_VOLATILE
 
 /* Define to 1 if your C compiler doesn't accept -c and -o together. */
 #undef NO_MINUS_C_MINUS_O
 
 /* Name of package */
-#define PACKAGE "google-perftools"
+#define PACKAGE "gperftools"
 
 /* Define to the address where bug reports for this package should be sent. */
 #define PACKAGE_BUGREPORT "opensource@google.com"
 
 /* Define to the full name of this package. */
-#define PACKAGE_NAME "google-perftools"
+#define PACKAGE_NAME "gperftools"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "google-perftools 1.8"
+#define PACKAGE_STRING "gperftools 2.0"
 
 /* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME "google-perftools"
+#define PACKAGE_TARNAME "gperftools"
 
 /* Define to the home page for this package. */
 #undef PACKAGE_URL
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "1.8"
+#define PACKAGE_VERSION "2.0"
 
 /* How to access the PC from a struct ucontext */
 #undef PC_FROM_UCONTEXT
 
 /* Always the empty-string on non-windows systems. On windows, should be
    "__declspec(dllexport)". This way, when we compile the dll, we export our
    functions/classes. It's safe to define this here because config.h is only
    used internally, to compile the DLL, and every DLL source file #includes
    "config.h" before anything else. */
 #ifndef PERFTOOLS_DLL_DECL
@@ skipping 52 matching lines @@
 # define _WIN32_WINNT 0x0501
 #endif
 
 // We want to make sure not to ever try to #include heap-checker.h
 #define NO_HEAP_CHECK 1
 
 // TODO(csilvers): include windows/port.h in every relevant source file instead?
 #include "windows/port.h"
 
 #endif  /* GOOGLE_PERFTOOLS_WINDOWS_CONFIG_H_ */