Suppress race in OnSetProfilerStatus introduced in r112571.

TBR=rtenneti@chromium.org
BUG=106196
TEST=greener tsan bots

Review URL: http://codereview.chromium.org/8769047

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112741 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/tsan/suppressions.txt

@@ -704,3 +704,10 @@
   fun:ChromeMain
   fun:main
 }
+{
+  bug_106196
+  ThreadSanitizer:Race
+  fun:tracked_objects::ThreadData::InitializeAndSetTrackingStatus
+  fun:ChildThread::OnSetProfilerStatus
+  fun:DispatchToMethod
+}