Add another histogram related suppression

Histograms are found via a locked function, and then
placed into static atomic variables. They allow for
racing with a second thread that emplants the same
pointer into that atomic variable.

r=dhollowa
BUG=104776

Review URL: http://codereview.chromium.org/8491067

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110885 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/tsan/suppressions.txt

@@ -386,6 +386,13 @@
   fun:HistogramSynchronizer::DeserializeHistogramList*
 }
 
+{
+   bug_104776 Benign race to initialize pointer with the same value again.
+   ThreadSanitizer:Race
+   fun:base::StatisticsRecorder::FindHistogram
+   fun:base::*Histogram::FactoryGet
+}
+
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 ############################
 # Real races in Chromium
@@ -692,11 +699,3 @@
    fun:MessageLoop::RunHandler
    fun:MessageLoop::Run
 }
-{
-   bug_104776
-   ThreadSanitizer:Race
-   fun:base::StatisticsRecorder::FindHistogram
-   fun:base::LinearHistogram::FactoryGet
-   fun:dbus::ObjectProxy::RunResponseCallback
-   fun:base::internal::Invoker4::DoInvoke
-}