Standardize usage of virtual/override/final in components/

components/autofill/content/browser/content_autofill_driver_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 <algorithm>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 36 matching lines @@
 
 class TestContentAutofillDriver : public ContentAutofillDriver {
  public:
   TestContentAutofillDriver(content::WebContents* contents,
                             AutofillClient* client)
       : ContentAutofillDriver(contents, client, kAppLocale, kDownloadState) {
     scoped_ptr<AutofillManager> autofill_manager(
         new MockAutofillManager(this, client));
     SetAutofillManager(autofill_manager.Pass());
   }
-  virtual ~TestContentAutofillDriver() {}
+  ~TestContentAutofillDriver() override {}
 
   virtual MockAutofillManager* mock_autofill_manager() {
     return static_cast<MockAutofillManager*>(autofill_manager());
   }
 
   using ContentAutofillDriver::DidNavigateMainFrame;
 };
 
 class ContentAutofillDriverTest : public content::RenderViewHostTestHarness {
  public:
@@ skipping 246 matching lines @@
   base::string16 input_value(base::ASCIIToUTF16("barqux"));
   base::string16 output_value;
   driver_->RendererShouldPreviewFieldWithValue(input_value);
   EXPECT_TRUE(GetString16FromMessageWithID(
       AutofillMsg_PreviewFieldWithValue::ID,
       &output_value));
   EXPECT_EQ(input_value, output_value);
 }
 
 }  // namespace autofill