Standardize usage of virtual/override/final specifiers.

chrome/browser/process_singleton_posix_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 "chrome/browser/process_singleton.h"
 
 #include <fcntl.h>
 #include <signal.h>
 #include <sys/types.h>
 #include <sys/un.h>
@@ skipping 53 matching lines @@
 
   ProcessSingletonPosixTest()
       : kill_callbacks_(0),
         io_thread_(BrowserThread::IO),
         wait_event_(true, false),
         signal_event_(true, false),
         process_singleton_on_thread_(NULL) {
     io_thread_.StartIOThread();
   }
 
-  virtual void SetUp() {
+  void SetUp() override {
     testing::Test::SetUp();
 
     ProcessSingleton::DisablePromptForTesting();
     // Put the lock in a temporary directory.  Doesn't need to be a
     // full profile to test this code.
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     // Use a long directory name to ensure that the socket isn't opened through
     // the symlink.
     user_data_path_ = temp_dir_.path().Append(
         std::string(sizeof(sockaddr_un::sun_path), 'a'));
     ASSERT_TRUE(CreateDirectory(user_data_path_));
 
     lock_path_ = user_data_path_.Append(chrome::kSingletonLockFilename);
     socket_path_ = user_data_path_.Append(chrome::kSingletonSocketFilename);
     cookie_path_ = user_data_path_.Append(chrome::kSingletonCookieFilename);
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     scoped_refptr<base::ThreadTestHelper> io_helper(new base::ThreadTestHelper(
         BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO).get()));
     ASSERT_TRUE(io_helper->Run());
 
     // Destruct the ProcessSingleton object before the IO thread so that its
     // internals are destructed properly.
     if (process_singleton_on_thread_) {
       worker_thread_->message_loop()->PostTask(
           FROM_HERE,
           base::Bind(&ProcessSingletonPosixTest::DestructProcessSingleton,
@@ skipping 317 matching lines @@
 // Test that if there is an existing lock file, and it's not locked, we replace
 // it.
 TEST_F(ProcessSingletonPosixTest, CreateReplacesOldMacLock) {
   scoped_ptr<TestableProcessSingleton> process_singleton(
       CreateProcessSingleton());
   EXPECT_EQ(0, base::WriteFile(lock_path_, "", 0));
   EXPECT_TRUE(process_singleton->Create());
   VerifyFiles();
 }
 #endif  // defined(OS_MACOSX)