Update from https://crrev.com/309717

cc/layers/nine_patch_layer_unittest.cc

Index: cc/layers/nine_patch_layer_unittest.cc
diff --git a/cc/layers/nine_patch_layer_unittest.cc b/cc/layers/nine_patch_layer_unittest.cc
index 587fb07c452b073e9c9bb2584c1923e6c9d89131..1783ba9fa4159fdb8c71e49437ceab945b7dadf7 100644
--- a/cc/layers/nine_patch_layer_unittest.cc
+++ b/cc/layers/nine_patch_layer_unittest.cc
@@ -34,11 +34,11 @@ class NinePatchLayerTest : public testing::Test {
   NinePatchLayerTest() : fake_client_(FakeLayerTreeHostClient::DIRECT_3D) {}
 
  protected:
-  virtual void SetUp() {
+  void SetUp() override {
     layer_tree_host_ = FakeLayerTreeHost::Create(&fake_client_);
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     Mock::VerifyAndClearExpectations(layer_tree_host_.get());
   }