Update from https://crrev.com/307330

cc/test/layer_tree_test.cc

Index: cc/test/layer_tree_test.cc
diff --git a/cc/test/layer_tree_test.cc b/cc/test/layer_tree_test.cc
index 9f0867718e2946dca50af24c2eba8af937770b32..5be1240af912299e8a9ef88418c2be539fc8fb2d 100644
--- a/cc/test/layer_tree_test.cc
+++ b/cc/test/layer_tree_test.cc
@@ -785,11 +785,6 @@ void LayerTreeTest::RunTestWithImplSidePainting() {
   RunTest(true, false, true);
 }
 
-void LayerTreeTest::RunTestWithMainThreadLowLatency() {
-  settings_.main_thread_should_always_be_low_latency = true;
-  RunTest(false, false, false);
-}
-
 void LayerTreeTest::RequestNewOutputSurface(bool fallback) {
   layer_tree_host_->SetOutputSurface(CreateOutputSurface(fallback));
 }