Get rid of graphics layer anchor points, and replace with transform origin.

cc/layers/layer_position_constraint_unittest.cc

Index: cc/layers/layer_position_constraint_unittest.cc
diff --git a/cc/layers/layer_position_constraint_unittest.cc b/cc/layers/layer_position_constraint_unittest.cc
index cc112d1b157178ed79032e561ec8988ee8064e48..269bc9656c57af57147eeaad03061078b3bc2bc8 100644
--- a/cc/layers/layer_position_constraint_unittest.cc
+++ b/cc/layers/layer_position_constraint_unittest.cc
@@ -19,13 +19,13 @@ namespace {
 
 void SetLayerPropertiesForTesting(LayerImpl* layer,
                                   const gfx::Transform& transform,
-                                  const gfx::PointF& anchor,
+                                  const gfx::Point3F& transform_origin,
                                   const gfx::PointF& position,
                                   const gfx::Size& bounds,
                                   bool flatten_transform,
                                   bool is_3d_sorted) {
   layer->SetTransform(transform);
-  layer->SetAnchorPoint(anchor);
+  layer->SetTransformOrigin(transform_origin);
   layer->SetPosition(position);
   layer->SetBounds(bounds);
   layer->SetShouldFlattenTransform(flatten_transform);
@@ -87,34 +87,34 @@ class LayerPositionConstraintTest : public testing::Test {
         LayerImpl::Create(host_impl_.active_tree(), 4);
 
     gfx::Transform IdentityMatrix;
-    gfx::PointF anchor;
+    gfx::Point3F transform_origin;
     gfx::PointF position;
     gfx::Size bounds(200, 200);
     gfx::Size clip_bounds(100, 100);
     SetLayerPropertiesForTesting(scroll_layer.get(),
                                  IdentityMatrix,
-                                 anchor,
+                                 transform_origin,
                                  position,
                                  bounds,
                                  true,
                                  false);
     SetLayerPropertiesForTesting(child.get(),
                                  IdentityMatrix,
-                                 anchor,
+                                 transform_origin,
                                  position,
                                  bounds,
                                  true,
                                  false);
     SetLayerPropertiesForTesting(grand_child.get(),
                                  IdentityMatrix,
-                                 anchor,
+                                 transform_origin,
                                  position,
                                  bounds,
                                  true,
                                  false);
     SetLayerPropertiesForTesting(great_grand_child.get(),
                                  IdentityMatrix,
-                                 anchor,
+                                 transform_origin,
                                  position,
                                  bounds,
                                  true,
@@ -741,7 +741,7 @@ TEST_F(LayerPositionConstraintTest,
         LayerImpl::Create(host_impl_.active_tree(), 5);
     SetLayerPropertiesForTesting(fixed_position_child.get(),
                                  identity,
-                                 gfx::PointF(),
+                                 gfx::Point3F(),
                                  gfx::PointF(),
                                  gfx::Size(100, 100),
                                  true,