Revert 113169 - Ignore the correct synchronization in __sfp on Mac that isn't handled

by ThreadSanitizer. We don't need the suppression anymore.

BUG=106197
Review URL: http://codereview.chromium.org/8800012

TBR=glider@chromium.org
Review URL: http://codereview.chromium.org/8819017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@113194 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/tsan/ignores_mac.txt

@@ -36,6 +36,3 @@ fun_r:_cthread_fork_child
 # False reports on Snow Leopard.
 fun_r: _pthread_exit
 fun_r: _dispatch_queue_drain
-
-# See http://crbug.com/106197
-fun_r: __sfp

tools/valgrind/tsan/suppressions_mac.txt

@@ -219,3 +219,15 @@
   fun:DVSignalSync
   fun:DVDeviceTerminate
 }
+{
+  bug_106197
+  ThreadSanitizer:Race
+  ...
+  fun:__sfp
+  fun:fopen
+  fun:file_util::OpenFile
+  fun:base::SharedMemory::Create
+  fun:base::SharedMemory::CreateNamed
+  fun:base::::MultipleThreadMain::ThreadMain
+  fun:base::::ThreadFunc
+}