Add a chromium version abort function for tcmalloc: Abort().

third_party/tcmalloc/chromium/src/heap-checker-bcad.cc

Index: third_party/tcmalloc/chromium/src/heap-checker-bcad.cc
===================================================================
--- third_party/tcmalloc/chromium/src/heap-checker-bcad.cc	(revision 135692)
+++ third_party/tcmalloc/chromium/src/heap-checker-bcad.cc	(working copy)
@@ -44,8 +44,8 @@
 // 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 <gperftools/malloc_extension.h>
+#include "base/abort.h"
 
 // A dummy variable to refer from heap-checker.cc.  This is to make
 // sure this file is not optimized out by the linker.
@@ -76,7 +76,7 @@
     ++count_;
   }
   ~HeapLeakCheckerGlobalPrePost() {
-    if (count_ <= 0)  abort();
+    if (count_ <= 0)  tcmalloc::Abort();
     --count_;
     if (count_ == 0)  HeapLeakChecker_AfterDestructors();
   }