Standardize usage of virtual/override/final in cc/

cc/trees/layer_tree_host_unittest_occlusion.cc

 // Copyright 2012 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/trees/layer_tree_host.h"
 
 #include "cc/layers/layer.h"
 #include "cc/output/copy_output_request.h"
 #include "cc/output/copy_output_result.h"
 #include "cc/test/layer_tree_test.h"
 #include "cc/test/test_occlusion_tracker.h"
 
 namespace cc {
 namespace {
 
 class TestLayer : public Layer {
  public:
   static scoped_refptr<TestLayer> Create() {
     return make_scoped_refptr(new TestLayer());
   }
 
-  virtual bool Update(ResourceUpdateQueue* update_queue,
-                      const OcclusionTracker<Layer>* occlusion) override {
+  bool Update(ResourceUpdateQueue* update_queue,
+              const OcclusionTracker<Layer>* occlusion) override {
     if (!occlusion)
       return false;
 
     const TestOcclusionTracker<Layer>* test_occlusion =
         static_cast<const TestOcclusionTracker<Layer>*>(occlusion);
     occlusion_ = UnionSimpleEnclosedRegions(
         test_occlusion->occlusion_from_inside_target(),
         test_occlusion->occlusion_from_outside_target());
     return false;
   }
 
   const SimpleEnclosedRegion& occlusion() const { return occlusion_; }
   const SimpleEnclosedRegion& expected_occlusion() const {
     return expected_occlusion_;
   }
   void set_expected_occlusion(const gfx::Rect& occlusion) {
     expected_occlusion_ = SimpleEnclosedRegion(occlusion);
   }
 
  private:
   TestLayer() : Layer() {
     SetIsDrawable(true);
   }
-  virtual ~TestLayer() {}
+  ~TestLayer() override {}
 
   SimpleEnclosedRegion occlusion_;
   SimpleEnclosedRegion expected_occlusion_;
 };
 
 class LayerTreeHostOcclusionTest : public LayerTreeTest {
  public:
   LayerTreeHostOcclusionTest()
       : root_(TestLayer::Create()),
         child_(TestLayer::Create()),
         child2_(TestLayer::Create()),
         grand_child_(TestLayer::Create()),
         mask_(TestLayer::Create()) {
   }
 
-  virtual void BeginTest() override {
-    PostSetNeedsCommitToMainThread();
-  }
+  void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 
-  virtual void DidCommit() override {
+  void DidCommit() override {
     TestLayer* root = static_cast<TestLayer*>(layer_tree_host()->root_layer());
     VerifyOcclusion(root);
 
     EndTest();
   }
 
-  virtual void AfterTest() override {}
+  void AfterTest() override {}
 
   void VerifyOcclusion(TestLayer* layer) const {
     EXPECT_EQ(layer->expected_occlusion().ToString(),
               layer->occlusion().ToString());
 
     for (size_t i = 0; i < layer->children().size(); ++i) {
       TestLayer* child = static_cast<TestLayer*>(layer->children()[i].get());
       VerifyOcclusion(child);
     }
   }
 
   void SetLayerPropertiesForTesting(TestLayer* layer,
                                     TestLayer* parent,
                                     const gfx::Transform& transform,
                                     const gfx::PointF& position,
                                     const gfx::Size& bounds,
                                     bool opaque) const {
     layer->RemoveAllChildren();
     if (parent)
       parent->AddChild(layer);
     layer->SetTransform(transform);
     layer->SetPosition(position);
     layer->SetBounds(bounds);
     layer->SetContentsOpaque(opaque);
   }
 
  protected:
-  virtual void InitializeSettings(LayerTreeSettings* settings) override {
+  void InitializeSettings(LayerTreeSettings* settings) override {
     settings->minimum_occlusion_tracking_size = gfx::Size();
   }
 
   scoped_refptr<TestLayer> root_;
   scoped_refptr<TestLayer> child_;
   scoped_refptr<TestLayer> child2_;
   scoped_refptr<TestLayer> grand_child_;
   scoped_refptr<TestLayer> mask_;
 
   gfx::Transform identity_matrix_;
 };
 
 
 class LayerTreeHostOcclusionTestOcclusionSurfaceClipping
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     // The child layer is a surface and the grand_child is opaque, but clipped
     // to the child and root
     SetLayerPropertiesForTesting(
         root_.get(), NULL, identity_matrix_,
         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
     SetLayerPropertiesForTesting(
         child_.get(), root_.get(), identity_matrix_,
         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), false);
     SetLayerPropertiesForTesting(
         grand_child_.get(), child_.get(), identity_matrix_,
         gfx::PointF(-10.f, -10.f), gfx::Size(20, 500), true);
 
     child_->SetMasksToBounds(true);
     child_->SetForceRenderSurface(true);
 
     child_->set_expected_occlusion(gfx::Rect(0, 0, 10, 190));
     root_->set_expected_occlusion(gfx::Rect(10, 10, 10, 190));
 
     layer_tree_host()->SetRootLayer(root_);
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostOcclusionTestOcclusionSurfaceClipping);
 
 class LayerTreeHostOcclusionTestOcclusionSurfaceClippingOpaque
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     // If the child layer is opaque, then it adds to the occlusion seen by the
     // root_.
     SetLayerPropertiesForTesting(
         root_.get(), NULL, identity_matrix_,
         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
     SetLayerPropertiesForTesting(
         child_.get(), root_.get(), identity_matrix_,
         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), true);
     SetLayerPropertiesForTesting(
         grand_child_.get(), child_.get(), identity_matrix_,
         gfx::PointF(-10.f, -10.f), gfx::Size(20, 500), true);
 
     child_->SetMasksToBounds(true);
     child_->SetForceRenderSurface(true);
 
     child_->set_expected_occlusion(gfx::Rect(0, 0, 10, 190));
     root_->set_expected_occlusion(gfx::Rect(10, 10, 190, 190));
 
     layer_tree_host()->SetRootLayer(root_);
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostOcclusionTestOcclusionSurfaceClippingOpaque);
 
 class LayerTreeHostOcclusionTestOcclusionTwoChildren
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     // Add a second child to the root layer and the regions should merge
     SetLayerPropertiesForTesting(
         root_.get(), NULL, identity_matrix_,
         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
     SetLayerPropertiesForTesting(
         child_.get(), root_.get(), identity_matrix_,
         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), false);
     SetLayerPropertiesForTesting(
         grand_child_.get(), child_.get(), identity_matrix_,
         gfx::PointF(-10.f, -10.f), gfx::Size(20, 500), true);
@@ skipping 12 matching lines @@
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostOcclusionTestOcclusionTwoChildren);
 
 class LayerTreeHostOcclusionTestOcclusionMask
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     // If the child layer has a mask on it, then it shouldn't contribute to
     // occlusion on stuff below it.
     SetLayerPropertiesForTesting(
         root_.get(), NULL, identity_matrix_,
         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
     SetLayerPropertiesForTesting(
         child2_.get(), root_.get(), identity_matrix_,
         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), true);
     SetLayerPropertiesForTesting(
         child_.get(), root_.get(), identity_matrix_,
@@ skipping 12 matching lines @@
     layer_tree_host()->SetRootLayer(root_);
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostOcclusionTestOcclusionMask);
 
 class LayerTreeHostOcclusionTestOcclusionMaskBelowOcclusion
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     // If the child layer with a mask is below child2, then child2 should
     // contribute to occlusion on everything, and child shouldn't contribute
     // to the root_.
     SetLayerPropertiesForTesting(
         root_.get(), NULL, identity_matrix_,
         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
     SetLayerPropertiesForTesting(
         child_.get(), root_.get(), identity_matrix_,
         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), true);
     SetLayerPropertiesForTesting(
@@ skipping 15 matching lines @@
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostOcclusionTestOcclusionMaskBelowOcclusion);
 
 class LayerTreeHostOcclusionTestOcclusionOpacity
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     // If the child layer has a non-opaque opacity, then it shouldn't
     // contribute to occlusion on stuff below it
     SetLayerPropertiesForTesting(
         root_.get(), NULL, identity_matrix_,
         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
     SetLayerPropertiesForTesting(
         child2_.get(), root_.get(), identity_matrix_,
         gfx::PointF(20.f, 10.f), gfx::Size(10, 500), true);
     SetLayerPropertiesForTesting(
         child_.get(), root_.get(), identity_matrix_,
@@ skipping 12 matching lines @@
     layer_tree_host()->SetRootLayer(root_);
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostOcclusionTestOcclusionOpacity);
 
 class LayerTreeHostOcclusionTestOcclusionOpacityBelowOcclusion
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     // If the child layer with non-opaque opacity is below child2, then
     // child2 should contribute to occlusion on everything, and child shouldn't
     // contribute to the root_.
     SetLayerPropertiesForTesting(
         root_.get(), NULL, identity_matrix_,
         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
     SetLayerPropertiesForTesting(
         child_.get(), root_.get(), identity_matrix_,
         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), true);
     SetLayerPropertiesForTesting(
@@ skipping 15 matching lines @@
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostOcclusionTestOcclusionOpacityBelowOcclusion);
 
 class LayerTreeHostOcclusionTestOcclusionBlending
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     // If the child layer has a blend mode, then it shouldn't
     // contribute to occlusion on stuff below it
     SetLayerPropertiesForTesting(
         root_.get(), NULL, identity_matrix_,
         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
     SetLayerPropertiesForTesting(
         child2_.get(), root_.get(), identity_matrix_,
         gfx::PointF(20.f, 10.f), gfx::Size(10, 500), true);
     SetLayerPropertiesForTesting(
         child_.get(), root_.get(), identity_matrix_,
@@ skipping 12 matching lines @@
     layer_tree_host()->SetRootLayer(root_);
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostOcclusionTestOcclusionBlending);
 
 class LayerTreeHostOcclusionTestOcclusionBlendingBelowOcclusion
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     // If the child layer with a blend mode is below child2, then
     // child2 should contribute to occlusion on everything, and child shouldn't
     // contribute to the root_.
     SetLayerPropertiesForTesting(
         root_.get(), NULL, identity_matrix_,
         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
     SetLayerPropertiesForTesting(
         child_.get(), root_.get(), identity_matrix_,
         gfx::PointF(10.f, 10.f), gfx::Size(500, 500), true);
     SetLayerPropertiesForTesting(
@@ skipping 14 matching lines @@
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostOcclusionTestOcclusionBlendingBelowOcclusion);
 
 class LayerTreeHostOcclusionTestOcclusionOpacityFilter
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     FilterOperations filters;
     filters.Append(FilterOperation::CreateOpacityFilter(0.5f));
 
     // If the child layer has a filter that changes alpha values, and is below
     // child2, then child2 should contribute to occlusion on everything,
     // and child shouldn't contribute to the root
     SetLayerPropertiesForTesting(
         root_.get(), NULL, identity_matrix_,
         gfx::PointF(0.f, 0.f), gfx::Size(200, 200), true);
     SetLayerPropertiesForTesting(child_.get(),
@@ skipping 31 matching lines @@
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostOcclusionTestOcclusionOpacityFilter);
 
 class LayerTreeHostOcclusionTestOcclusionBlurFilter
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     gfx::Transform child_transform;
     child_transform.Translate(250.0, 250.0);
     child_transform.Rotate(90.0);
     child_transform.Translate(-250.0, -250.0);
 
     FilterOperations filters;
     filters.Append(FilterOperation::CreateBlurFilter(10.f));
 
     // If the child layer has a filter that moves pixels/changes alpha, and is
     // below child2, then child should not inherit occlusion from outside its
@@ skipping 23 matching lines @@
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostOcclusionTestOcclusionBlurFilter);
 
 class LayerTreeHostOcclusionTestOcclusionCopyRequest
     : public LayerTreeHostOcclusionTest {
  public:
   static void CopyOutputCallback(scoped_ptr<CopyOutputResult> result) {}
 
-  virtual void SetupTree() override {
+  void SetupTree() override {
     // If the child layer has copy request, and is below child2,
     // then child should not inherit occlusion from outside its subtree.
     // The child layer will still receive occlusion from inside, and
     // the root layer will recive occlusion from child.
     SetLayerPropertiesForTesting(
         root_.get(), NULL, identity_matrix_,
         gfx::PointF(), gfx::Size(100, 100), true);
     SetLayerPropertiesForTesting(
         child_.get(), root_.get(), identity_matrix_,
         gfx::PointF(), gfx::Size(75, 75), true);
@@ skipping 14 matching lines @@
     layer_tree_host()->SetRootLayer(root_);
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostOcclusionTestOcclusionCopyRequest);
 
 class LayerTreeHostOcclusionTestOcclusionReplica
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     // If the child layer has copy request, and is below child2,
     // then child should not inherit occlusion from outside its subtree.
     // The child layer will still receive occlusion from inside, and
     // the root layer will recive occlusion from child.
     SetLayerPropertiesForTesting(
         root_.get(), NULL, identity_matrix_,
         gfx::PointF(), gfx::Size(100, 100), true);
     SetLayerPropertiesForTesting(
         child_.get(), root_.get(), identity_matrix_,
         gfx::PointF(), gfx::Size(75, 75), true);
@@ skipping 14 matching lines @@
     layer_tree_host()->SetRootLayer(root_);
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostOcclusionTestOcclusionReplica);
 
 class LayerTreeHostOcclusionTestManySurfaces
     : public LayerTreeHostOcclusionTest {
  public:
-  virtual void SetupTree() override {
+  void SetupTree() override {
     // We create enough RenderSurfaces that it will trigger Vector reallocation
     // while computing occlusion.
     std::vector<scoped_refptr<TestLayer>> layers;
     int num_surfaces = 200;
     int root_width = 400;
     int root_height = 400;
 
     for (int i = 0; i < num_surfaces; ++i) {
       layers.push_back(TestLayer::Create());
       if (i == 0) {
@@ skipping 25 matching lines @@
 
     layer_tree_host()->SetRootLayer(layers[0]);
     LayerTreeTest::SetupTree();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostOcclusionTestManySurfaces);
 
 }  // namespace
 }  // namespace cc