Revert 41938 - Merged third_party/tcmalloc/vendor/src(googleperftools r87) in...

third_party/tcmalloc/chromium/src/malloc_hook.cc

Index: third_party/tcmalloc/chromium/src/malloc_hook.cc
===================================================================
--- third_party/tcmalloc/chromium/src/malloc_hook.cc	(revision 41940)
+++ third_party/tcmalloc/chromium/src/malloc_hook.cc	(working copy)
@@ -423,7 +423,7 @@
   return result;
 }
 
-# endif  // defined(__x86_64__)
+# endif
 
 // We use do_mmap64 abstraction to put MallocHook::InvokeMmapHook
 // calls right into mmap and mmap64, so that the stack frames in the caller's
@@ -472,7 +472,7 @@
   return result;
 }
 
-#endif  // !defined(__USE_FILE_OFFSET64) || !defined(__REDIRECT_NTH)
+#endif
 
 extern "C" int munmap(void* start, size_t length) __THROW {
   MallocHook::InvokeMunmapHook(start, length);
@@ -501,26 +501,4 @@
   return result;
 }
 
-/*static*/void* MallocHook::UnhookedMMap(void *start, size_t length, int prot,
-                                         int flags, int fd, off_t offset) {
-  return do_mmap64(start, length, prot, flags, fd, offset);
-}
-
-/*static*/int MallocHook::UnhookedMUnmap(void *start, size_t length) {
-  return sys_munmap(start, length);
-}
-
-#else   // defined(__linux) &&
-        // (defined(__i386__) || defined(__x86_64__) || defined(__PPC__))
-
-/*static*/void* MallocHook::UnhookedMMap(void *start, size_t length, int prot,
-                                         int flags, int fd, off_t offset) {
-  return mmap(start, length, prot, flags, fd, offset);
-}
-
-/*static*/int MallocHook::UnhookedMUnmap(void *start, size_t length) {
-  return munmap(start, length);
-}
-
-#endif  // defined(__linux) &&
-        // (defined(__i386__) || defined(__x86_64__) || defined(__PPC__))
+#endif