Standardize usage of virtual/override/final specifiers.

chrome/browser/ui/ash/screenshot_taker_unittest.cc

 // Copyright 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 "chrome/browser/ui/ash/screenshot_taker.h"
 
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 18 matching lines @@
 
 class ScreenshotTakerTest : public AshTestBase,
                             public ScreenshotTakerObserver {
  public:
   ScreenshotTakerTest()
       : running_(false),
         screenshot_complete_(false),
         screenshot_result_(ScreenshotTakerObserver::SCREENSHOT_SUCCESS) {
   }
 
-  virtual void SetUp() {
-    AshTestBase::SetUp();
-  }
+  void SetUp() override { AshTestBase::SetUp(); }
 
-  virtual void TearDown() {
+  void TearDown() override {
     RunAllPendingInMessageLoop();
     AshTestBase::TearDown();
   }
 
   // Overridden from ScreenshotTakerObserver
-  virtual void OnScreenshotCompleted(
-      ScreenshotTakerObserver::Result screenshot_result,
-      const base::FilePath& screenshot_path) override {
+  void OnScreenshotCompleted(ScreenshotTakerObserver::Result screenshot_result,
+                             const base::FilePath& screenshot_path) override {
     screenshot_complete_ = true;
     screenshot_result_ = screenshot_result;
     screenshot_path_ = screenshot_path;
     if (!running_)
       return;
     message_loop_runner_->Quit();
     running_ = false;
   }
 
  protected:
@@ skipping 76 matching lines @@
   if (ScreenshotTakerObserver::SCREENSHOT_SUCCESS == screenshot_result_)
     EXPECT_TRUE(base::PathExists(screenshot_path_));
 
 #if defined(OS_CHROMEOS)
   chromeos::LoginState::Shutdown();
 #endif
 }
 
 }  // namespace test
 }  // namespace ash