Revert 226920 "Roll Clang 188423:191856."

trunk/src/base/security_unittest.cc

Index: trunk/src/base/security_unittest.cc
===================================================================
--- trunk/src/base/security_unittest.cc	(revision 226977)
+++ trunk/src/base/security_unittest.cc	(working copy)
@@ -75,11 +75,14 @@
 }
 
 bool CallocDiesOnOOM() {
-// The sanitizers' calloc dies on OOM instead of returning NULL.
 // The wrapper function in base/process_util_linux.cc that is used when we
 // compile without TCMalloc will just die on OOM instead of returning NULL.
-#if defined(ADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || \
-    defined(THREAD_SANITIZER) || (defined(OS_LINUX) && defined(NO_TCMALLOC))
+// This function is explicitly disabled if we compile with AddressSanitizer,
+// MemorySanitizer or ThreadSanitizer.
+#if defined(OS_LINUX) && defined(NO_TCMALLOC) && \
+    (!defined(ADDRESS_SANITIZER) && \
+     !defined(MEMORY_SANITIZER) && \
+     !defined(THREAD_SANITIZER))
   return true;
 #else
   return false;