cc: LayerTreeHostImpl uses element id to tick animations

cc/layers/render_surface_unittest.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layers/append_quads_data.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/layers/render_surface_impl.h"
 #include "cc/quads/shared_quad_state.h"
 #include "cc/test/fake_compositor_frame_sink.h"
 #include "cc/test/fake_impl_task_runner_provider.h"
@@ skipping 44 matching lines @@
   RenderSurfaceImpl* render_surface =
       host_impl.active_tree()->root_layer_for_testing()->GetRenderSurface();
   ASSERT_TRUE(render_surface);
 
   // Currently, the content_rect, clip_rect, and
   // owning_layer->layerPropertyChanged() are the only sources of change.
   EXECUTE_AND_VERIFY_SURFACE_CHANGED(render_surface->SetClipRect(test_rect));
   EXECUTE_AND_VERIFY_SURFACE_CHANGED(
       render_surface->SetContentRectForTesting(test_rect));
 
-  host_impl.active_tree()->property_trees()->effect_tree.OnOpacityAnimated(
-      0.5f,
-      host_impl.active_tree()->root_layer_for_testing()->effect_tree_index(),
-      host_impl.active_tree());
+  host_impl.active_tree()->SetOpacityMutated(
+      host_impl.active_tree()->root_layer_for_testing()->element_id(), 0.5f);
   EXPECT_TRUE(render_surface->SurfacePropertyChanged());
   host_impl.active_tree()->ResetAllChangeTracking();
 
   // Setting the surface properties to the same values again should not be
   // considered "change".
   EXECUTE_AND_VERIFY_SURFACE_DID_NOT_CHANGE(
       render_surface->SetClipRect(test_rect));
   EXECUTE_AND_VERIFY_SURFACE_DID_NOT_CHANGE(
       render_surface->SetContentRectForTesting(test_rect));
 
@@ skipping 108 matching lines @@
 
   auto pass = render_surface->CreateRenderPass();
 
   EXPECT_EQ(2, pass->id);
   EXPECT_EQ(content_rect, pass->output_rect);
   EXPECT_EQ(origin, pass->transform_to_root_target);
 }
 
 }  // namespace
 }  // namespace cc