Delete scrollCompensationAdjustment.

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 054d3c935d9c44fe1a75961ef63b9fbfc99ce179..e2c7a31f3157a79f6004626bd9c4f55166939368 100644
--- a/cc/trees/layer_tree_host_common_unittest.cc
+++ b/cc/trees/layer_tree_host_common_unittest.cc
@@ -7181,107 +7181,6 @@ TEST_F(LayerTreeHostCommonTest, ScrollCompensationWithRounding) {
 }
 
 TEST_F(LayerTreeHostCommonTest,
-       ScrollCompensationMainScrollOffsetFractionalPart) {
-  // This test verifies that a scrolling layer that has fractional scroll offset
-  // from main doesn't move a fixed position child.
-  //
-  // + root
-  //   + container
-  //     + scroller
-  //       + fixed
-  //
-  FakeImplTaskRunnerProvider task_runner_provider;
-  TestSharedBitmapManager shared_bitmap_manager;
-  TestTaskGraphRunner task_graph_runner;
-  FakeLayerTreeHostImpl host_impl(&task_runner_provider, &shared_bitmap_manager,
-                                  &task_graph_runner);
-  host_impl.CreatePendingTree();
-  scoped_ptr<LayerImpl> root_ptr =
-      LayerImpl::Create(host_impl.active_tree(), 1);
-  LayerImpl* root = root_ptr.get();
-  scoped_ptr<LayerImpl> container =
-      LayerImpl::Create(host_impl.active_tree(), 2);
-  LayerImpl* container_layer = container.get();
-  scoped_ptr<LayerImpl> scroller =
-      LayerImpl::Create(host_impl.active_tree(), 3);
-  LayerImpl* scroll_layer = scroller.get();
-  scoped_ptr<LayerImpl> fixed = LayerImpl::Create(host_impl.active_tree(), 4);
-  LayerImpl* fixed_layer = fixed.get();
-
-  container->SetIsContainerForFixedPositionLayers(true);
-
-  LayerPositionConstraint constraint;
-  constraint.set_is_fixed_position(true);
-  container->SetDrawsContent(true);
-  fixed->SetDrawsContent(true);
-  fixed->SetPositionConstraint(constraint);
-
-  scroller->SetDrawsContent(true);
-  scroller->SetScrollClipLayer(container->id());
-
-  gfx::Transform identity_transform;
-  gfx::Transform container_transform;
-  container_transform.Translate3d(10.0, 20.0, 0.0);
-  gfx::Vector2dF container_offset = container_transform.To2dTranslation();
-
-  SetLayerPropertiesForTesting(root, identity_transform, gfx::Point3F(),
-                               gfx::PointF(), gfx::Size(50, 50), true, false,
-                               true);
-  SetLayerPropertiesForTesting(container.get(), container_transform,
-                               gfx::Point3F(), gfx::PointF(), gfx::Size(40, 40),
-                               true, false, false);
-  SetLayerPropertiesForTesting(scroller.get(), identity_transform,
-                               gfx::Point3F(), gfx::PointF(0.0, 0.0),
-                               gfx::Size(30, 30), true, false, false);
-
-  gfx::ScrollOffset scroll_offset(3.3, 4.2);
-  gfx::Vector2dF main_scroll_fractional_part(0.3f, 0.2f);
-  gfx::Vector2dF scroll_delta(0.1f, 0.4f);
-  // Blink only uses the integer part of the scroll_offset for fixed
-  // position layer.
-  SetLayerPropertiesForTesting(fixed.get(), identity_transform, gfx::Point3F(),
-                               gfx::PointF(3.0f, 4.0f), gfx::Size(50, 50), true,
-                               false, false);
-  scroll_layer->layer_tree_impl()
-      ->property_trees()
-      ->scroll_tree.UpdateScrollOffsetBaseForTesting(scroll_layer->id(),
-                                                     scroll_offset);
-
-  scroll_layer->SetScrollCompensationAdjustment(main_scroll_fractional_part);
-
-  scroller->AddChild(std::move(fixed));
-  container->AddChild(std::move(scroller));
-  root->AddChild(std::move(container));
-
-  root->layer_tree_impl()->SetRootLayer(std::move(root_ptr));
-  root->layer_tree_impl()->BuildPropertyTreesForTesting();
-
-  SetScrollOffsetDelta(scroll_layer, scroll_delta);
-
-  LayerImplList render_surface_layer_list;
-  root->layer_tree_impl()->IncrementRenderSurfaceListIdForTesting();
-  LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
-      root, root->bounds(), &render_surface_layer_list,
-      root->layer_tree_impl()->current_render_surface_list_id());
-  LayerTreeHostCommon::CalculateDrawProperties(&inputs);
-
-  EXPECT_TRANSFORMATION_MATRIX_EQ(
-      container_layer->draw_properties().screen_space_transform,
-      fixed_layer->draw_properties().screen_space_transform);
-  EXPECT_VECTOR_EQ(
-      fixed_layer->draw_properties().screen_space_transform.To2dTranslation(),
-      container_offset);
-
-  gfx::ScrollOffset effective_scroll_offset =
-      ScrollOffsetWithDelta(scroll_offset, scroll_delta);
-  gfx::Vector2d rounded_effective_scroll_offset =
-      ToRoundedVector2d(ScrollOffsetToVector2dF(effective_scroll_offset));
-  EXPECT_VECTOR_EQ(
-      scroll_layer->draw_properties().screen_space_transform.To2dTranslation(),
-      container_offset - rounded_effective_scroll_offset);
-}
-
-TEST_F(LayerTreeHostCommonTest,
        ScrollSnappingWithAnimatedScreenSpaceTransform) {
   // This test verifies that a scrolling layer whose screen space transform is
   // animating doesn't get snapped to integer coordinates.
@@ -8630,65 +8529,6 @@ TEST_F(LayerTreeHostCommonTest, OnlyApplyFixedPositioningOnce) {
   EXPECT_EQ(expected, fixed->visible_layer_rect());
 }
 
-TEST_F(LayerTreeHostCommonTest,
-       PropertyTreesAccountForScrollCompensationAdjustment) {
-  gfx::Transform identity;
-  gfx::Transform translate_z;
-  translate_z.Translate3d(0, 0, 10);
-
-  scoped_refptr<Layer> root = Layer::Create();
-  SetLayerPropertiesForTesting(root.get(), identity, gfx::Point3F(),
-                               gfx::PointF(), gfx::Size(800, 800), true, false);
-  root->SetIsContainerForFixedPositionLayers(true);
-
-  scoped_refptr<Layer> frame_clip = Layer::Create();
-  SetLayerPropertiesForTesting(frame_clip.get(), translate_z, gfx::Point3F(),
-                               gfx::PointF(500, 100), gfx::Size(100, 100), true,
-                               false);
-  frame_clip->SetMasksToBounds(true);
-
-  scoped_refptr<LayerWithForcedDrawsContent> scroller =
-      make_scoped_refptr(new LayerWithForcedDrawsContent());
-  SetLayerPropertiesForTesting(scroller.get(), identity, gfx::Point3F(),
-                               gfx::PointF(), gfx::Size(1000, 1000), true,
-                               false);
-
-  scroller->SetScrollCompensationAdjustment(gfx::Vector2dF(0.3f, 0.7f));
-  scroller->SetScrollOffset(gfx::ScrollOffset(0.3, 0.7));
-  scroller->SetScrollClipLayerId(frame_clip->id());
-
-  scoped_refptr<LayerWithForcedDrawsContent> fixed =
-      make_scoped_refptr(new LayerWithForcedDrawsContent());
-  SetLayerPropertiesForTesting(fixed.get(), identity, gfx::Point3F(),
-                               gfx::PointF(), gfx::Size(50, 50), true, false);
-
-  LayerPositionConstraint constraint;
-  constraint.set_is_fixed_position(true);
-  fixed->SetPositionConstraint(constraint);
-
-  scoped_refptr<LayerWithForcedDrawsContent> fixed_child =
-      make_scoped_refptr(new LayerWithForcedDrawsContent());
-  SetLayerPropertiesForTesting(fixed_child.get(), identity, gfx::Point3F(),
-                               gfx::PointF(), gfx::Size(10, 10), true, false);
-
-  fixed_child->SetPositionConstraint(constraint);
-
-  root->AddChild(frame_clip);
-  frame_clip->AddChild(scroller);
-  scroller->AddChild(fixed);
-  fixed->AddChild(fixed_child);
-
-  host()->SetRootLayer(root);
-
-  ExecuteCalculateDrawPropertiesWithPropertyTrees(root.get());
-
-  gfx::Rect expected(0, 0, 50, 50);
-  EXPECT_EQ(expected, fixed->visible_layer_rect());
-
-  expected = gfx::Rect(0, 0, 10, 10);
-  EXPECT_EQ(expected, fixed_child->visible_layer_rect());
-}
-
 TEST_F(LayerTreeHostCommonTest, FixedClipsShouldBeAssociatedWithTheRightNode) {
   gfx::Transform identity;