Suppress another stack for bug 63590 (race in...

tools/valgrind/tsan/suppressions.txt

 ############################
 # Chromium
 
 {
   bug_23433
   ThreadSanitizer:Race
   fun:*logging*SetMinLogLevel*
 }
 
 {
@@ skipping 159 matching lines @@
   bug_61731
   ThreadSanitizer:Race
   fun:*Log*
   ...
   fun:*Worker*
   ...
   obj:*ipc_tests
 }
 
 {
-  bug_63590
+  bug_63590_a
   ThreadSanitizer:Race
   fun:*ObserverListBase*Iterator*
   fun:*browser_sync*SyncerThreadWithSyncerTest_AuthInvalid_Test*
 }
 
+{
+  bug_63590_b
+  ThreadSanitizer:Race
+  fun:*ObserverListBase*Iterator*
+  fun:*browser_sync*ServerConnectionManager*NotifyStatusChanged*
+  fun:*browser_sync*ScopedServerStatusWatcher*
+  fun:*browser_sync*SyncerProtoUtil*PostAndProcessHeaders*
+  fun:*browser_sync*SyncerProtoUtil*PostClientToServerMessage*
+  fun:*browser_sync*DownloadUpdatesCommand*ExecuteImpl*
+  fun:*browser_sync*SyncerCommand*Execute*
+}
+
 # TODO(timurrrr): bug item
 {
   Data race on bool in AssertReporter [test-only]
   ThreadSanitizer:Race
   ...
   fun:*AssertReporter*warn*
 }
 
 # TODO(timurrrr): bug item
 {
@@ skipping 176 matching lines @@
   ThreadSanitizer:Race
   ...
   fun:gethostbyname2_r*
 }
 
 {
   Benign race in nss (PR_EnterMonitor)
   ThreadSanitizer:Race
   fun:PR_EnterMonitor
 }