cc : Move LayerImpl::children to test properties

cc/layers/layer_impl_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/layer_impl.h"
 
 #include "cc/animation/mutable_properties.h"
 #include "cc/layers/painted_scrollbar_layer_impl.h"
 #include "cc/layers/solid_color_scrollbar_layer_impl.h"
 #include "cc/output/filter_operation.h"
@@ skipping 116 matching lines @@
   std::unique_ptr<LayerImpl> root_ptr =
       LayerImpl::Create(host_impl.active_tree(), 2);
   LayerImpl* root = root_ptr.get();
   root_clip_ptr->AddChild(std::move(root_ptr));
   host_impl.active_tree()->SetRootLayer(std::move(root_clip_ptr));
 
   root->test_properties()->force_render_surface = true;
   root->layer_tree_impl()->ResetAllChangeTracking();
 
   root->AddChild(LayerImpl::Create(host_impl.active_tree(), 7));
-  LayerImpl* child = root->children()[0];
+  LayerImpl* child = root->test_properties()->children[0];
   child->AddChild(LayerImpl::Create(host_impl.active_tree(), 8));
-  LayerImpl* grand_child = child->children()[0];
+  LayerImpl* grand_child = child->test_properties()->children[0];
   root->SetScrollClipLayer(root_clip->id());
   host_impl.active_tree()->BuildLayerListAndPropertyTreesForTesting();
 
   // Adding children is an internal operation and should not mark layers as
   // changed.
   EXPECT_FALSE(root->LayerPropertyChanged());
   EXPECT_FALSE(child->LayerPropertyChanged());
   EXPECT_FALSE(grand_child->LayerPropertyChanged());
 
   gfx::PointF arbitrary_point_f = gfx::PointF(0.125f, 0.25f);
@@ skipping 262 matching lines @@
     // Set the max scroll offset by noting that the root layer has bounds (1,1),
     // thus whatever bounds are set for the layer will be the max scroll
     // offset plus 1 in each direction.
     host_impl_.active_tree()->root_layer()->SetBounds(gfx::Size(1, 1));
     gfx::Vector2d max_scroll_offset(51, 81);
     layer()->SetBounds(gfx::Size(max_scroll_offset.x(), max_scroll_offset.y()));
     host_impl_.active_tree()->BuildLayerListAndPropertyTreesForTesting();
   }
 
   LayerImpl* layer() {
-    return host_impl_.active_tree()->root_layer()->children()[0];
+    return host_impl_.active_tree()
+        ->root_layer()
+        ->test_properties()
+        ->children[0];
   }
 
   ScrollTree* scroll_tree(LayerImpl* layer_impl) {
     return &layer_impl->layer_tree_impl()->property_trees()->scroll_tree;
   }
 
   LayerTreeHostImpl& host_impl() { return host_impl_; }
 
   LayerTreeImpl* tree() { return host_impl_.active_tree(); }
 
@@ skipping 137 matching lines @@
 
   pending_layer->PushPropertiesTo(layer());
 
   EXPECT_VECTOR_EQ(gfx::Vector2dF(22, 23), layer()->CurrentScrollOffset());
   EXPECT_VECTOR_EQ(layer()->CurrentScrollOffset(),
                    pending_layer->CurrentScrollOffset());
 }
 
 }  // namespace
 }  // namespace cc