sync: GU retry with less explicit TimeTicks logic

sync/engine/syncer_unittest.cc

Index: sync/engine/syncer_unittest.cc
diff --git a/sync/engine/syncer_unittest.cc b/sync/engine/syncer_unittest.cc
index a8e7c02227ce7baafcd4966c7d4c1ab9cd81dce2..d4ff18db877434e93167f84dbe38d9db80359896 100644
--- a/sync/engine/syncer_unittest.cc
+++ b/sync/engine/syncer_unittest.cc
@@ -469,10 +469,10 @@ class SyncerTest : public testing::Test,
   void ConfigureNoGetUpdatesRequired() {
     context_->set_server_enabled_pre_commit_update_avoidance(true);
     nudge_tracker_.OnInvalidationsEnabled();
-    nudge_tracker_.RecordSuccessfulSyncCycle(base::TimeTicks::Now());
+    nudge_tracker_.RecordSuccessfulSyncCycle();
 
     ASSERT_FALSE(context_->ShouldFetchUpdatesBeforeCommit());
-    ASSERT_FALSE(nudge_tracker_.IsGetUpdatesRequired(base::TimeTicks::Now()));
+    ASSERT_FALSE(nudge_tracker_.IsGetUpdatesRequired());
   }
 
   base::MessageLoop message_loop_;