Standardize usage of virtual/override/final specifiers.

chrome/browser/autocomplete/keyword_extensions_delegate_impl_unittest.cc

 // Copyright 2014 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/autocomplete/keyword_extensions_delegate_impl.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/path_service.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_service_test_base.h"
@@ skipping 44 matching lines @@
 void ScopedExtensionLoadObserver::OnExtensionInstalled(
     content::BrowserContext* browser_context,
     const Extension* extension,
     bool is_update) {
   quit_closure_.Run();
 }
 
 class KeywordExtensionsDelegateImplTest : public ExtensionServiceTestBase {
  public:
   KeywordExtensionsDelegateImplTest() {}
-  virtual ~KeywordExtensionsDelegateImplTest() {}
+  ~KeywordExtensionsDelegateImplTest() override {}
 
  protected:
-  virtual void SetUp() override;
+  void SetUp() override;
 
   void RunTest(bool incognito);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(KeywordExtensionsDelegateImplTest);
 };
 
 void KeywordExtensionsDelegateImplTest::SetUp() {
   ExtensionServiceTestBase::SetUp();
   InitializeExtensionService(CreateDefaultInitParams());
@@ skipping 55 matching lines @@
   RunTest(false);
 }
 
 TEST_F(KeywordExtensionsDelegateImplTest, IsEnabledExtensionIncognito) {
   RunTest(true);
 }
 
 }  // namespace
 
 }  // namespace extensions