Update from https://crrev.com/304418

cc/quads/list_container_unittest.cc

Index: cc/quads/list_container_unittest.cc
diff --git a/cc/quads/list_container_unittest.cc b/cc/quads/list_container_unittest.cc
index 3ef677c66410882a68a81864360e408036cb8563..d41d8bd83fde17ca28df09de076a9dabbb63e65e 100644
--- a/cc/quads/list_container_unittest.cc
+++ b/cc/quads/list_container_unittest.cc
@@ -56,10 +56,9 @@ class SimpleDrawQuadConstructMagicNumberTwo : public SimpleDrawQuad {
 
 class MockDrawQuad : public DrawQuad {
  public:
-  virtual ~MockDrawQuad() { Destruct(); }
-  virtual void IterateResources(
-      const ResourceIteratorCallback& callback) override {}
-  virtual void ExtendValue(base::debug::TracedValue* value) const override {}
+  ~MockDrawQuad() override { Destruct(); }
+  void IterateResources(const ResourceIteratorCallback& callback) override {}
+  void ExtendValue(base::debug::TracedValue* value) const override {}
   MOCK_METHOD0(Destruct, void());
 };