TSAN: Suppress a race in DeviceOrientationProviderTest.

BUG=139849
TEST=none
TBR=hans
Review URL: https://chromiumcodereview.appspot.com/10829111

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@149320 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/tsan/suppressions.txt

@@ -1029,4 +1029,11 @@
    fun:browser_sync::NewNonFrontendDataTypeController::StartAssociationWithSharedChangeProcessor
    fun:base::internal::RunnableAdapter::Run
 }
-
+{
+  bug_139849
+  ThreadSanitizer:Race
+  fun:base::Thread::~Thread
+  fun:device_orientation::ProviderImpl::PollingThread::~PollingThread
+  fun:::DeleteThread
+  fun:base::internal::RunnableAdapter::Run
+}