Make TSan/reliability_tests greener

BUG=67957,125928
TBR=glider
Review URL: https://codereview.chromium.org/11308352

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170982 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/tsan/ignores.txt

@@ -162,6 +162,11 @@ fun:g_slice_alloc
 # A benign race in glibc on "random_time_bits".
 fun:__gen_tempname
 
+# A probably-benign race on '__have_o_cloexec' in opendir/__alloc_dir,
+# see http://crbug.com/125928.
+fun_r:__alloc_dir
+fun_r:opendir
+
 # The sqlite cache is racing against a few different stacktraces,
 # so let's ignore it recursively. See http://crbug.com/84094
 fun_r:pcache1Fetch

tools/valgrind/tsan/suppressions.txt

@@ -483,8 +483,8 @@
   ThreadSanitizer:Race
   fun:Replace_memcpy
   fun:memcpy
-  fun:Serialize
-  fun:UserScriptMaster::ScriptReloader::RunLoad
+  fun:extensions::Serialize
+  fun:extensions::UserScriptMaster::ScriptReloader::RunLoad
 }
 
 {