Tidy up memory barriers.

Change-Id: I937ea93e6df1835ecfe2d4bb7d84c24fe7fc097b
diff --git a/runtime/thread_pool_test.cc b/runtime/thread_pool_test.cc
index 1b22361..2029d4b 100644
--- a/runtime/thread_pool_test.cc
+++ b/runtime/thread_pool_test.cc
@@ -94,7 +94,7 @@
   EXPECT_EQ(0, bad_count);
   // Allow tasks to finish up and delete themselves.
   thread_pool.StartWorkers(self);
-  while (count.load() != num_tasks && bad_count.load() != 1) {
+  while (count.Load() != num_tasks && bad_count.Load() != 1) {
     usleep(200);
   }
   thread_pool.StopWorkers(self);