cc: Move LayerImpl::AddChild and RemoveChild to LayerImplTestProperties

cc/layers/layer_list_iterator_unittest.cc

 // Copyright 2016 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/layer_list_iterator.h"
 
 #include <memory>
 
 #include "base/containers/adapters.h"
 #include "cc/test/fake_impl_task_runner_provider.h"
@@ skipping 212 matching lines @@
       LayerImpl::Create(host_impl.active_tree(), 3);
   std::unique_ptr<LayerImpl> layer4 =
       LayerImpl::Create(host_impl.active_tree(), 4);
   std::unique_ptr<LayerImpl> layer5 =
       LayerImpl::Create(host_impl.active_tree(), 5);
   std::unique_ptr<LayerImpl> layer6 =
       LayerImpl::Create(host_impl.active_tree(), 6);
   std::unique_ptr<LayerImpl> layer7 =
       LayerImpl::Create(host_impl.active_tree(), 7);
 
-  layer2->AddChild(std::move(layer3));
-  layer2->AddChild(std::move(layer4));
+  layer2->test_properties()->AddChild(std::move(layer3));
+  layer2->test_properties()->AddChild(std::move(layer4));
 
-  layer5->AddChild(std::move(layer6));
-  layer5->AddChild(std::move(layer7));
+  layer5->test_properties()->AddChild(std::move(layer6));
+  layer5->test_properties()->AddChild(std::move(layer7));
 
-  layer1->AddChild(std::move(layer2));
-  layer1->AddChild(std::move(layer5));
+  layer1->test_properties()->AddChild(std::move(layer2));
+  layer1->test_properties()->AddChild(std::move(layer5));
 
   host_impl.active_tree()->SetRootLayer(std::move(layer1));
   host_impl.active_tree()->BuildLayerListForTesting();
 
   int i = 1;
   for (auto* layer : *host_impl.active_tree()) {
     EXPECT_EQ(i++, layer->id());
   }
   EXPECT_EQ(8, i);
 }
@@ skipping 62 matching lines @@
       LayerImpl::Create(host_impl.active_tree(), 3);
   std::unique_ptr<LayerImpl> layer4 =
       LayerImpl::Create(host_impl.active_tree(), 4);
   std::unique_ptr<LayerImpl> layer5 =
       LayerImpl::Create(host_impl.active_tree(), 5);
   std::unique_ptr<LayerImpl> layer6 =
       LayerImpl::Create(host_impl.active_tree(), 6);
   std::unique_ptr<LayerImpl> layer7 =
       LayerImpl::Create(host_impl.active_tree(), 7);
 
-  layer2->AddChild(std::move(layer3));
-  layer2->AddChild(std::move(layer4));
+  layer2->test_properties()->AddChild(std::move(layer3));
+  layer2->test_properties()->AddChild(std::move(layer4));
 
-  layer5->AddChild(std::move(layer6));
-  layer5->AddChild(std::move(layer7));
+  layer5->test_properties()->AddChild(std::move(layer6));
+  layer5->test_properties()->AddChild(std::move(layer7));
 
-  layer1->AddChild(std::move(layer2));
-  layer1->AddChild(std::move(layer5));
+  layer1->test_properties()->AddChild(std::move(layer2));
+  layer1->test_properties()->AddChild(std::move(layer5));
 
   host_impl.active_tree()->SetRootLayer(std::move(layer1));
   host_impl.active_tree()->BuildLayerListForTesting();
 
   int i = 7;
 
   for (auto* layer : base::Reversed(*host_impl.active_tree())) {
     EXPECT_EQ(i--, layer->id());
   }
 
@@ skipping 31 matching lines @@
   LayerListReverseIterator<LayerImpl> it(nullptr);
   LayerListReverseIterator<LayerImpl> end(nullptr);
 
   EXPECT_EQ(it, end);
   ++it;
   EXPECT_EQ(it, end);
 }
 
 }  // namespace
 }  // namespace cc