Standardize usage of virtual/override/final in cc/

cc/test/fake_ui_resource_layer_tree_host_impl.h

Index: cc/test/fake_ui_resource_layer_tree_host_impl.h
diff --git a/cc/test/fake_ui_resource_layer_tree_host_impl.h b/cc/test/fake_ui_resource_layer_tree_host_impl.h
index 9d6eac4369a624c76e214408a858a123b8215413..08a50dd5037b0c3b43a56aea8caf83a281ee8198 100644
--- a/cc/test/fake_ui_resource_layer_tree_host_impl.h
+++ b/cc/test/fake_ui_resource_layer_tree_host_impl.h
@@ -14,17 +14,17 @@ class FakeUIResourceLayerTreeHostImpl : public FakeLayerTreeHostImpl {
  public:
   explicit FakeUIResourceLayerTreeHostImpl(Proxy* proxy,
                                            SharedBitmapManager* manager);
-  virtual ~FakeUIResourceLayerTreeHostImpl();
+  ~FakeUIResourceLayerTreeHostImpl() override;
 
-  virtual void CreateUIResource(UIResourceId uid,
-                                const UIResourceBitmap& bitmap) override;
+  void CreateUIResource(UIResourceId uid,
+                        const UIResourceBitmap& bitmap) override;
 
-  virtual void DeleteUIResource(UIResourceId uid) override;
+  void DeleteUIResource(UIResourceId uid) override;
 
-  virtual ResourceProvider::ResourceId ResourceIdForUIResource(
+  ResourceProvider::ResourceId ResourceIdForUIResource(
       UIResourceId uid) const override;
 
-  virtual bool IsUIResourceOpaque(UIResourceId uid) const override;
+  bool IsUIResourceOpaque(UIResourceId uid) const override;
 
  private:
   ResourceProvider::ResourceId fake_next_resource_id_;