Some more virtual/override updates.

mojo/public/cpp/utility/tests/run_loop_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 "mojo/public/cpp/utility/run_loop.h"
 
 #include <string>
 
 #include "mojo/public/cpp/system/core.h"
 #include "mojo/public/cpp/test_support/test_utils.h"
@@ skipping 32 matching lines @@
   int error_count_;
   MojoResult last_error_result_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(TestRunLoopHandler);
 };
 
 class RunLoopTest : public testing::Test {
  public:
   RunLoopTest() {}
 
-  virtual void SetUp() override {
+  void SetUp() override {
     Test::SetUp();
     RunLoop::SetUp();
   }
-  virtual void TearDown() override {
+  void TearDown() override {
     RunLoop::TearDown();
     Test::TearDown();
   }
 
  private:
   MOJO_DISALLOW_COPY_AND_ASSIGN(RunLoopTest);
 };
 
 // Trivial test to verify Run() with no added handles returns.
 TEST_F(RunLoopTest, ExitsWithNoHandles) {
@@ skipping 354 matching lines @@
   run_loop.AddHandler(&handler,
                       test_pipe.handle0.get(),
                       MOJO_HANDLE_SIGNAL_READABLE,
                       MOJO_DEADLINE_INDEFINITE);
   run_loop.PostDelayedTask(Closure(QuittingTask(&run_loop)), 0);
   run_loop.Run();
 }
 
 }  // namespace
 }  // namespace mojo