cc: LayerTreeHostImpl uses element id to tick animations

cc/tiles/tile_manager_unittest.cc

Index: cc/tiles/tile_manager_unittest.cc
diff --git a/cc/tiles/tile_manager_unittest.cc b/cc/tiles/tile_manager_unittest.cc
index b006f5ab5b85d447dd8a26cafbc2accab2fd50fa..19ddf2f511c47ca7597e2fb3597647c906270c8d 100644
--- a/cc/tiles/tile_manager_unittest.cc
+++ b/cc/tiles/tile_manager_unittest.cc
@@ -950,9 +950,8 @@ TEST_F(TileManagerTilePriorityQueueTest,
   host_impl()->pending_tree()->BuildLayerListAndPropertyTreesForTesting();
   host_impl()->pending_tree()->UpdateDrawProperties(update_lcd_text);
 
-  host_impl()->pending_tree()->property_trees()->effect_tree.OnOpacityAnimated(
-      0.0f, pending_child_layer->effect_tree_index(),
-      host_impl()->pending_tree());
+  host_impl()->pending_tree()->SetTreeLayerOpacityMutated(
+      pending_child_layer->element_id(), 0.0f);
 
   host_impl()->AdvanceToNextFrame(base::TimeDelta::FromMilliseconds(1));
   host_impl()->pending_tree()->UpdateDrawProperties(update_lcd_text);