Move LayerImpl's bounds_delta to property trees

cc/trees/layer_tree_host_common_unittest.cc

Index: cc/trees/layer_tree_host_common_unittest.cc
diff --git a/cc/trees/layer_tree_host_common_unittest.cc b/cc/trees/layer_tree_host_common_unittest.cc
index 51ef650997dcd8bed83a2cde931694d836b9c304..6c96b6a903d5530222b9af873f5e4e8f308192a7 100644
--- a/cc/trees/layer_tree_host_common_unittest.cc
+++ b/cc/trees/layer_tree_host_common_unittest.cc
@@ -7343,7 +7343,7 @@ TEST_F(LayerTreeHostCommonTest, StickyPositionBottomInnerViewportDelta) {
 
   // We start to hide the toolbar, but not far enough that the sticky element
   // should be moved up yet.
-  root_impl->SetBoundsDelta(gfx::Vector2dF(0.f, -10.f));
+  root_impl->SetViewportBoundsDelta(gfx::Vector2dF(0.f, -10.f));
   ExecuteCalculateDrawProperties(root_impl, 1.f, 1.f, root_impl, inner_scroll,
                                  nullptr);
   EXPECT_VECTOR2DF_EQ(
@@ -7351,7 +7351,7 @@ TEST_F(LayerTreeHostCommonTest, StickyPositionBottomInnerViewportDelta) {
       sticky_pos_impl->ScreenSpaceTransform().To2dTranslation());
 
   // On hiding more of the toolbar the sticky element starts to stick.
-  root_impl->SetBoundsDelta(gfx::Vector2dF(0.f, -20.f));
+  root_impl->SetViewportBoundsDelta(gfx::Vector2dF(0.f, -20.f));
   ExecuteCalculateDrawProperties(root_impl, 1.f, 1.f, root_impl, inner_scroll,
                                  nullptr);
   EXPECT_VECTOR2DF_EQ(
@@ -7360,7 +7360,7 @@ TEST_F(LayerTreeHostCommonTest, StickyPositionBottomInnerViewportDelta) {
 
   // On hiding more the sticky element stops moving as it has reached its
   // limit.
-  root_impl->SetBoundsDelta(gfx::Vector2dF(0.f, -30.f));
+  root_impl->SetViewportBoundsDelta(gfx::Vector2dF(0.f, -30.f));
   ExecuteCalculateDrawProperties(root_impl, 1.f, 1.f, root_impl, inner_scroll,
                                  nullptr);
   EXPECT_VECTOR2DF_EQ(
@@ -7420,7 +7420,7 @@ TEST_F(LayerTreeHostCommonTest, StickyPositionBottomOuterViewportDelta) {
 
   // We start to hide the toolbar, but not far enough that the sticky element
   // should be moved up yet.
-  outer_clip_impl->SetBoundsDelta(gfx::Vector2dF(0.f, -10.f));
+  outer_clip_impl->SetViewportBoundsDelta(gfx::Vector2dF(0.f, -10.f));
   ExecuteCalculateDrawProperties(root_impl, 1.f, 1.f, root_impl, inner_scroll,
                                  outer_scroll);
   EXPECT_VECTOR2DF_EQ(
@@ -7428,7 +7428,7 @@ TEST_F(LayerTreeHostCommonTest, StickyPositionBottomOuterViewportDelta) {
       sticky_pos_impl->ScreenSpaceTransform().To2dTranslation());
 
   // On hiding more of the toolbar the sticky element starts to stick.
-  outer_clip_impl->SetBoundsDelta(gfx::Vector2dF(0.f, -20.f));
+  outer_clip_impl->SetViewportBoundsDelta(gfx::Vector2dF(0.f, -20.f));
   ExecuteCalculateDrawProperties(root_impl, 1.f, 1.f, root_impl, inner_scroll,
                                  outer_scroll);
 
@@ -7438,7 +7438,7 @@ TEST_F(LayerTreeHostCommonTest, StickyPositionBottomOuterViewportDelta) {
       gfx::Vector2dF(0.f, 60.f),
       sticky_pos_impl->ScreenSpaceTransform().To2dTranslation());
 
-  outer_clip_impl->SetBoundsDelta(gfx::Vector2dF(0.f, -30.f));
+  outer_clip_impl->SetViewportBoundsDelta(gfx::Vector2dF(0.f, -30.f));
   ExecuteCalculateDrawProperties(root_impl, 1.f, 1.f, root_impl, inner_scroll,
                                  outer_scroll);
 
@@ -8857,7 +8857,7 @@ TEST_F(LayerTreeHostCommonTest, VisibleContentRectInChildRenderSurface) {
   EXPECT_EQ(gfx::Rect(768 / 2, 582 / 2), content->visible_layer_rect());
 }
 
-TEST_F(LayerTreeHostCommonTest, BoundsDeltaAffectVisibleContentRect) {
+TEST_F(LayerTreeHostCommonTest, ViewportBoundsDeltaAffectVisibleContentRect) {
   FakeImplTaskRunnerProvider task_runner_provider;
   TestTaskGraphRunner task_graph_runner;
   FakeLayerTreeHostImpl host_impl(&task_runner_provider, &task_graph_runner);
@@ -8881,6 +8881,11 @@ TEST_F(LayerTreeHostCommonTest, BoundsDeltaAffectVisibleContentRect) {
   root->SetBounds(root_size);
   root->SetMasksToBounds(true);
 
+  // Make root the inner viewport scroll layer. This ensures the later call to
+  // |SetViewportBoundsDelta| will be on a viewport layer.
+  host_impl.active_tree()->SetViewportLayersFromIds(
+      Layer::INVALID_ID, Layer::INVALID_ID, root->id(), Layer::INVALID_ID);
+
   root->test_properties()->AddChild(
       LayerImpl::Create(host_impl.active_tree(), 2));
 
@@ -8897,7 +8902,7 @@ TEST_F(LayerTreeHostCommonTest, BoundsDeltaAffectVisibleContentRect) {
   LayerTreeHostCommon::CalculateDrawPropertiesForTesting(&inputs);
   EXPECT_EQ(gfx::Rect(root_size), sublayer->visible_layer_rect());
 
-  root->SetBoundsDelta(gfx::Vector2dF(0.0, 50.0));
+  root->SetViewportBoundsDelta(gfx::Vector2dF(0.0, 50.0));
   LayerTreeHostCommon::CalculateDrawPropertiesForTesting(&inputs);
 
   gfx::Rect affected_by_delta(0, 0, root_size.width(),
@@ -8905,7 +8910,7 @@ TEST_F(LayerTreeHostCommonTest, BoundsDeltaAffectVisibleContentRect) {
   EXPECT_EQ(affected_by_delta, sublayer->visible_layer_rect());
 }
 
-TEST_F(LayerTreeHostCommonTest, NodesAffectedByBoundsDeltaGetUpdated) {
+TEST_F(LayerTreeHostCommonTest, NodesAffectedByViewportBoundsDeltaGetUpdated) {
   scoped_refptr<Layer> root = Layer::Create();
   scoped_refptr<Layer> inner_viewport_container_layer = Layer::Create();
   scoped_refptr<Layer> inner_viewport_scroll_layer = Layer::Create();