Fixes for tcmalloc for VS2013

third_party/tcmalloc/chromium/src/windows/port.h

Index: third_party/tcmalloc/chromium/src/windows/port.h
diff --git a/third_party/tcmalloc/chromium/src/windows/port.h b/third_party/tcmalloc/chromium/src/windows/port.h
index c23810918592b7182e47183cc82cd0a551b1f6e6..2b67522c1c7e5590b632f48f6687f729fa424b94 100644
--- a/third_party/tcmalloc/chromium/src/windows/port.h
+++ b/third_party/tcmalloc/chromium/src/windows/port.h
@@ -433,6 +433,7 @@ inline int nanosleep(const struct timespec *req, struct timespec *rem) {
 }
 
 #ifndef __MINGW32__
+#if _MSC_VER < 1800  // Not required >= VS2013.
 inline long long int strtoll(const char *nptr, char **endptr, int base) {
     return _strtoi64(nptr, endptr, base);
 }
@@ -443,6 +444,7 @@ inline unsigned long long int strtoull(const char *nptr, char **endptr,
 inline long long int strtoq(const char *nptr, char **endptr, int base) {
     return _strtoi64(nptr, endptr, base);
 }
+#endif
 inline unsigned long long int strtouq(const char *nptr, char **endptr,
                                       int base) {
     return _strtoui64(nptr, endptr, base);