[PATCH] Make caching of memory mappings in sanitizer_procmaps optional

[Alexander Potapenko]

  LGTM with a nit, which I'm gonna fix myself :)


================
Comment at: lib/msan/msan.cc:73
@@ -72,3 +72,3 @@
   bool result = false;
-  MemoryMappingLayout proc_maps;
+  MemoryMappingLayout proc_maps(true);
   const sptr kBufSize = 4095;
----------------
/*cache_enabled*/true


http://llvm-reviews.chandlerc.com/D569