cc: Stop cache transform invertibility at Layer and LayerImpl

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 453 matching lines @@
 TEST(LayerImplTest, TransformInvertibility) {
   FakeImplTaskRunnerProvider task_runner_provider;
   TestSharedBitmapManager shared_bitmap_manager;
   TestTaskGraphRunner task_graph_runner;
   FakeLayerTreeHostImpl host_impl(&task_runner_provider, &shared_bitmap_manager,
                                   &task_graph_runner);
 
   std::unique_ptr<LayerImpl> layer =
       LayerImpl::Create(host_impl.active_tree(), 1);
   EXPECT_TRUE(layer->transform().IsInvertible());
-  EXPECT_TRUE(layer->transform_is_invertible());
 
   gfx::Transform transform;
   transform.Scale3d(
       SkDoubleToMScalar(1.0), SkDoubleToMScalar(1.0), SkDoubleToMScalar(0.0));
   layer->SetTransform(transform);
   EXPECT_FALSE(layer->transform().IsInvertible());
-  EXPECT_FALSE(layer->transform_is_invertible());
 
   transform.MakeIdentity();
   transform.ApplyPerspectiveDepth(SkDoubleToMScalar(100.0));
   transform.RotateAboutZAxis(75.0);
   transform.RotateAboutXAxis(32.2);
   transform.RotateAboutZAxis(-75.0);
   transform.Translate3d(SkDoubleToMScalar(50.5),
                         SkDoubleToMScalar(42.42),
                         SkDoubleToMScalar(-100.25));
 
   layer->SetTransform(transform);
   EXPECT_TRUE(layer->transform().IsInvertible());
-  EXPECT_TRUE(layer->transform_is_invertible());
 }
 
 class LayerImplScrollTest : public testing::Test {
  public:
   LayerImplScrollTest()
       : host_impl_(settings(),
                    &task_runner_provider_,
                    &shared_bitmap_manager_,
                    &task_graph_runner_),
         root_id_(7) {
@@ skipping 162 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