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

chrome/browser/extensions/unpacked_installer.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 "chrome/browser/extensions/unpacked_installer.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_util.h"
 #include "base/strings/string_util.h"
@@ skipping 32 matching lines @@
     "'import' version requested is newer than what is installed.";
 const char kImportMissing[] = "'import' extension is not installed.";
 const char kImportNotSharedModule[] = "'import' is not a shared module.";
 
 // Manages an ExtensionInstallPrompt for a particular extension.
 class SimpleExtensionLoadPrompt : public ExtensionInstallPrompt::Delegate {
  public:
   SimpleExtensionLoadPrompt(const Extension* extension,
                             Profile* profile,
                             const base::Closure& callback);
-  virtual ~SimpleExtensionLoadPrompt();
+  ~SimpleExtensionLoadPrompt() override;
 
   void ShowPrompt();
 
   // ExtensionInstallUI::Delegate
-  virtual void InstallUIProceed() override;
-  virtual void InstallUIAbort(bool user_initiated) override;
+  void InstallUIProceed() override;
+  void InstallUIAbort(bool user_initiated) override;
 
  private:
   scoped_ptr<ExtensionInstallPrompt> install_ui_;
   scoped_refptr<const Extension> extension_;
   base::Closure callback_;
 };
 
 SimpleExtensionLoadPrompt::SimpleExtensionLoadPrompt(
     const Extension* extension,
     Profile* profile,
@@ skipping 289 matching lines @@
 
   PermissionsUpdater perms_updater(service_weak_->profile());
   perms_updater.InitializePermissions(extension());
   perms_updater.GrantActivePermissions(extension());
 
   service_weak_->OnExtensionInstalled(
       extension(), syncer::StringOrdinal(), kInstallFlagInstallImmediately);
 }
 
 }  // namespace extensions