Standardize usage of virtual/override/final specifiers.

chrome/browser/prefs/chrome_pref_service_unittest.cc

 // Copyright (c) 2013 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 "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/prefs/pref_registry_simple.h"
@@ skipping 45 matching lines @@
   value = pref->GetValue();
   ASSERT_TRUE(value);
   EXPECT_EQ(base::Value::TYPE_BOOLEAN, value->GetType());
   actual_bool_value = false;
   EXPECT_TRUE(value->GetAsBoolean(&actual_bool_value));
   EXPECT_TRUE(actual_bool_value);
 }
 
 class ChromePrefServiceUserFilePrefsTest : public testing::Test {
  protected:
-  virtual void SetUp() {
+  void SetUp() override {
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 
     ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &data_dir_));
     data_dir_ = data_dir_.AppendASCII("pref_service");
     ASSERT_TRUE(base::PathExists(data_dir_));
   }
 
   void ClearListValue(PrefService* prefs, const char* key) {
     ListPrefUpdate updater(prefs, key);
     updater->Clear();
   }
 
   void ClearDictionaryValue(PrefService* prefs, const char* key) {
     DictionaryPrefUpdate updater(prefs, key);
     updater->Clear();
   }
 
   // The path to temporary directory used to contain the test operations.
   base::ScopedTempDir temp_dir_;
   // The path to the directory where the test data is stored.
   base::FilePath data_dir_;
   // A message loop that we can use as the file thread message loop.
   base::MessageLoop message_loop_;
 };
 
 class ChromePrefServiceWebKitPrefs : public ChromeRenderViewHostTestHarness {
  protected:
-  virtual void SetUp() {
+  void SetUp() override {
     ChromeRenderViewHostTestHarness::SetUp();
 
     // Supply our own profile so we use the correct profile data. The test
     // harness is not supposed to overwrite a profile if it's already created.
 
     // Set some (WebKit) user preferences.
     TestingPrefServiceSyncable* pref_services =
         profile()->GetTestingPrefService();
     pref_services->SetUserPref(prefs::kDefaultCharset,
                                new base::StringValue("utf8"));
@@ skipping 25 matching lines @@
   const char kDefaultFont[] = "Times";
 #elif defined(OS_CHROMEOS)
   const char kDefaultFont[] = "Tinos";
 #else
   const char kDefaultFont[] = "Times New Roman";
 #endif
   EXPECT_EQ(base::ASCIIToUTF16(kDefaultFont),
             webkit_prefs.standard_font_family_map[prefs::kWebKitCommonScript]);
   EXPECT_TRUE(webkit_prefs.javascript_enabled);
 }