Update from https://crrev.com/304418

cc/layers/delegated_frame_provider_unittest.cc

Index: cc/layers/delegated_frame_provider_unittest.cc
diff --git a/cc/layers/delegated_frame_provider_unittest.cc b/cc/layers/delegated_frame_provider_unittest.cc
index 5ba92bf32764f4e421b3cf8f27f9b47ddbee606e..454bf7d7aee31cff5e543450ef16210ce6ecdcee 100644
--- a/cc/layers/delegated_frame_provider_unittest.cc
+++ b/cc/layers/delegated_frame_provider_unittest.cc
@@ -62,12 +62,12 @@ class DelegatedFrameProviderTest
                  false);
   }
 
-  virtual void SetUp() override {
+  void SetUp() override {
     resource_collection_ = new DelegatedFrameResourceCollection;
     resource_collection_->SetClient(this);
   }
 
-  virtual void TearDown() override { resource_collection_->SetClient(nullptr); }
+  void TearDown() override { resource_collection_->SetClient(nullptr); }
 
   void UnusedResourcesAreAvailable() override {
     resources_available_ = true;