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

chrome/browser/status_icons/status_tray_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 "base/compiler_specific.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/status_icons/status_icon.h"
 #include "chrome/browser/status_icons/status_tray.h"
 #include "grit/chrome_unscaled_resources.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image_skia.h"
 
 class MockStatusIcon : public StatusIcon {
-  virtual void SetImage(const gfx::ImageSkia& image) override {}
-  virtual void SetToolTip(const base::string16& tool_tip) override {}
-  virtual void DisplayBalloon(const gfx::ImageSkia& icon,
-                              const base::string16& title,
-                              const base::string16& contents) override {}
-  virtual void UpdatePlatformContextMenu(
-      StatusIconMenuModel* menu) override {}
+  void SetImage(const gfx::ImageSkia& image) override {}
+  void SetToolTip(const base::string16& tool_tip) override {}
+  void DisplayBalloon(const gfx::ImageSkia& icon,
+                      const base::string16& title,
+                      const base::string16& contents) override {}
+  void UpdatePlatformContextMenu(StatusIconMenuModel* menu) override {}
 };
 
 class TestStatusTray : public StatusTray {
  public:
-  virtual StatusIcon* CreatePlatformStatusIcon(
+  StatusIcon* CreatePlatformStatusIcon(
       StatusIconType type,
       const gfx::ImageSkia& image,
       const base::string16& tool_tip) override {
     return new MockStatusIcon();
   }
 
   const StatusIcons& GetStatusIconsForTest() const { return status_icons(); }
 };
 
 TEST(StatusTrayTest, Create) {
@@ skipping 10 matching lines @@
 TEST(StatusTrayTest, CreateRemove) {
   TestStatusTray tray;
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
   gfx::ImageSkia* image = rb.GetImageSkiaNamed(IDR_STATUS_TRAY_ICON);
   StatusIcon* icon = tray.CreateStatusIcon(
       StatusTray::OTHER_ICON, *image, base::ASCIIToUTF16("tool tip"));
   EXPECT_EQ(1U, tray.GetStatusIconsForTest().size());
   tray.RemoveStatusIcon(icon);
   EXPECT_EQ(0U, tray.GetStatusIconsForTest().size());
 }