Some more virtual/override updates.

mojo/public/cpp/bindings/tests/validation_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdio.h>
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 169 matching lines @@
 
 class DummyMessageReceiver : public MessageReceiver {
  public:
   bool Accept(Message* message) override {
     return true;  // Any message is OK.
   }
 };
 
 class ValidationTest : public testing::Test {
  public:
-  virtual ~ValidationTest() {}
+  ~ValidationTest() override {}
 
  private:
   Environment env_;
 };
 
 class ValidationIntegrationTest : public ValidationTest {
  public:
   ValidationIntegrationTest() : test_message_receiver_(nullptr) {}
 
-  virtual ~ValidationIntegrationTest() {}
+  ~ValidationIntegrationTest() override {}
 
-  virtual void SetUp() override {
+  void SetUp() override {
     ScopedMessagePipeHandle tester_endpoint;
     ASSERT_EQ(MOJO_RESULT_OK,
               CreateMessagePipe(nullptr, &tester_endpoint, &testee_endpoint_));
     test_message_receiver_ =
         new TestMessageReceiver(this, tester_endpoint.Pass());
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     delete test_message_receiver_;
     test_message_receiver_ = nullptr;
 
     // Make sure that the other end receives the OnConnectionError()
     // notification.
     PumpMessages();
   }
 
   MessageReceiver* test_message_receiver() { return test_message_receiver_; }
 
@@ skipping 189 matching lines @@
   IntegrationTestInterface1Impl* interface1_impl =
       BindToPipe(new IntegrationTestInterface1Impl(), testee_endpoint().Pass());
   interface1_impl->internal_state()->router()->EnableTestingMode();
 
   RunValidationTests("integration_", test_message_receiver());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace mojo