replace OVERRIDE and FINAL with override and final in chromeos/

chromeos/attestation/mock_attestation_flow.h

Index: chromeos/attestation/mock_attestation_flow.h
diff --git a/chromeos/attestation/mock_attestation_flow.h b/chromeos/attestation/mock_attestation_flow.h
index 1774964a6f7850a1a4bc55e0b239e1ee05906b82..a4a26b99225a136ece5e386ecaa449b11af3fe62 100644
--- a/chromeos/attestation/mock_attestation_flow.h
+++ b/chromeos/attestation/mock_attestation_flow.h
@@ -25,10 +25,10 @@ class FakeServerProxy : public ServerProxy {
   }
 
   virtual void SendEnrollRequest(const std::string& request,
-                                 const DataCallback& callback) OVERRIDE;
+                                 const DataCallback& callback) override;
 
   virtual void SendCertificateRequest(const std::string& request,
-                                      const DataCallback& callback) OVERRIDE;
+                                      const DataCallback& callback) override;
 
  private:
   bool result_;