cc: Use Element Id to Record Animation Changes

cc/trees/layer_tree_host_common_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/trees/layer_tree_host_common.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 2535 matching lines @@
   grand_child_of_rs1->SetBounds(gfx::Size(10, 10));
   grand_child_of_rs1->test_properties()->transform_origin =
       gfx::Point3F(0.25f, 0.f, 0.f);
   grand_child_of_rs2->test_properties()->transform = layer_transform;
   grand_child_of_rs2->SetPosition(gfx::PointF(2.5f, 0.f));
   grand_child_of_rs2->SetBounds(gfx::Size(10, 10));
   grand_child_of_rs2->test_properties()->transform_origin =
       gfx::Point3F(0.25f, 0.f, 0.f);
 
   root->layer_tree_impl()->BuildLayerListAndPropertyTreesForTesting();
-  SetElementIdsForTesting();
 
   // Put an animated opacity on the render surface.
   AddOpacityTransitionToElementWithPlayer(
       render_surface1->element_id(), timeline_impl(), 10.0, 1.f, 0.f, false);
 
   // Also put an animated opacity on a layer without descendants.
   AddOpacityTransitionToElementWithPlayer(grand_child_of_root->element_id(),
                                           timeline_impl(), 10.0, 1.f, 0.f,
                                           false);
 
@@ skipping 2499 matching lines @@
   const int child_id = child->id();
   root->test_properties()->AddChild(std::move(child));
   LayerImpl* root_layer = root.get();
   host_impl.pending_tree()->SetRootLayerForTesting(std::move(root));
   host_impl.pending_tree()->BuildLayerListAndPropertyTreesForTesting();
 
   // Add opacity animation.
   scoped_refptr<AnimationTimeline> timeline =
       AnimationTimeline::Create(AnimationIdProvider::NextTimelineId());
   host_impl.animation_host()->AddAnimationTimeline(timeline);
-  host_impl.pending_tree()->SetElementIdsForTesting();
 
   ElementId child_element_id =
       host_impl.pending_tree()->LayerById(child_id)->element_id();
 
   AddOpacityTransitionToElementWithPlayer(child_element_id, timeline, 10.0,
                                           0.0f, 1.0f, false);
 
   LayerImplList render_surface_layer_list;
   LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
       root_layer, root_layer->bounds(), &render_surface_layer_list);
@@ skipping 5704 matching lines @@
   EXPECT_EQ(scroll_child6.id, grand_child10->scroll_tree_index());
   EXPECT_EQ(scroll_root1.id, parent3->scroll_tree_index());
   EXPECT_EQ(scroll_child7.id, child8->scroll_tree_index());
   EXPECT_EQ(scroll_root1.id, parent4->scroll_tree_index());
   EXPECT_EQ(scroll_root1.id, child9->scroll_tree_index());
   EXPECT_EQ(scroll_root1.id, grand_child12->scroll_tree_index());
 }
 
 }  // namespace
 }  // namespace cc