Some more virtual/override updates.

mojo/public/cpp/bindings/tests/router_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 <stdlib.h>
 #include <string.h>
 
 #include "mojo/public/cpp/bindings/lib/message_builder.h"
 #include "mojo/public/cpp/bindings/lib/message_queue.h"
 #include "mojo/public/cpp/bindings/lib/router.h"
@@ skipping 85 matching lines @@
  private:
   MessageReceiver* responder_;
   uint32_t name_;
   uint64_t request_id_;
 };
 
 class RouterTest : public testing::Test {
  public:
   RouterTest() {}
 
-  virtual void SetUp() override {
+  void SetUp() override {
     CreateMessagePipe(nullptr, &handle0_, &handle1_);
   }
 
-  virtual void TearDown() override {}
+  void TearDown() override {}
 
   void PumpMessages() { loop_.RunUntilIdle(); }
 
  protected:
   ScopedMessagePipeHandle handle0_;
   ScopedMessagePipeHandle handle1_;
 
  private:
   Environment env_;
   RunLoop loop_;
@@ skipping 91 matching lines @@
 
     EXPECT_TRUE(generator.has_responder());
   }
 
   generator.Complete();  // This should end up doing nothing.
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace mojo