cc: Main thread skip single layers instead of subtrees

cc/trees/layer_tree_host_unittest.cc

Index: cc/trees/layer_tree_host_unittest.cc
diff --git a/cc/trees/layer_tree_host_unittest.cc b/cc/trees/layer_tree_host_unittest.cc
index 14e7f996b6f9d4b5d715fa66a2e5de040b18dbb8..89f658087f126f40b0be44eef98c6e97559fb8b9 100644
--- a/cc/trees/layer_tree_host_unittest.cc
+++ b/cc/trees/layer_tree_host_unittest.cc
@@ -6497,14 +6497,16 @@ class LayerTreeTestPageScaleFlags : public LayerTreeTest {
 
   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
     LayerTreeHostCommon::CallFunctionForEveryLayer(
-        host_impl->sync_tree(), [this](LayerImpl* layer) {
+        host_impl->sync_tree(),
+        [this](LayerImpl* layer) {
           const std::vector<int>& list =
               layer->IsAffectedByPageScale()
                   ? this->affected_by_page_scale_
                   : this->not_affected_by_page_scale_;
           EXPECT_TRUE(std::find(list.begin(), list.end(), layer->id()) !=
                       list.end());
-        });
+        },
+        CallFunctionLayerType::ALL_LAYERS);
 
     EndTest();
   }