Standardize usage of virtual/override/final in chrome/browser/signin/

chrome/browser/signin/signin_manager_unittest.cc

 // Copyright (c) 2012 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 "components/signin/core/browser/signin_manager.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 43 matching lines @@
   return service;
 }
 
 class TestSigninManagerObserver : public SigninManagerBase::Observer {
  public:
   TestSigninManagerObserver() : num_failed_signins_(0),
                                 num_successful_signins_(0),
                                 num_signouts_(0) {
   }
 
-  virtual ~TestSigninManagerObserver() {}
+  ~TestSigninManagerObserver() override {}
 
   int num_failed_signins_;
   int num_successful_signins_;
   int num_signouts_;
 
  private:
   // SigninManagerBase::Observer:
-  virtual void GoogleSigninFailed(
-      const GoogleServiceAuthError& error) override {
+  void GoogleSigninFailed(const GoogleServiceAuthError& error) override {
     num_failed_signins_++;
   }
 
-  virtual void GoogleSigninSucceeded(
-      const std::string& account_id,
-      const std::string& username,
-      const std::string& password) override {
+  void GoogleSigninSucceeded(const std::string& account_id,
+                             const std::string& username,
+                             const std::string& password) override {
     num_successful_signins_++;
   }
 
-  virtual void GoogleSignedOut(const std::string& account_id,
-                               const std::string& username) override {
+  void GoogleSignedOut(const std::string& account_id,
+                       const std::string& username) override {
     num_signouts_++;
   }
 };
 
 }  // namespace
 
 
 class SigninManagerTest : public testing::Test {
  public:
   SigninManagerTest() : manager_(NULL) {}
@@ skipping 248 matching lines @@
             profile()->GetPrefs()->GetString(prefs::kGoogleServicesUsername));
   EXPECT_EQ("external@example.com", manager_->GetAuthenticatedUsername());
 }
 
 TEST_F(SigninManagerTest, SigninNotAllowed) {
   std::string user("user@google.com");
   profile()->GetPrefs()->SetString(prefs::kGoogleServicesUsername, user);
   profile()->GetPrefs()->SetBoolean(prefs::kSigninAllowed, false);
   SetUpSigninManagerAsService();
 }