Standardize usage of virtual/override/final specifiers.

chrome/browser/bitmap_fetcher/bitmap_fetcher_browsertest.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/bitmap_fetcher/bitmap_fetcher.h"
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/test/base/in_process_browser_test.h"
@@ skipping 53 matching lines @@
   GURL url_;
   bool success_;
   bool async_;
   SkBitmap bitmap_;
 
   DISALLOW_COPY_AND_ASSIGN(BitmapFetcherTestDelegate);
 };
 
 class BitmapFetcherBrowserTest : public InProcessBrowserTest {
  public:
-  virtual void SetUp() override {
+  void SetUp() override {
     url_fetcher_factory_.reset(
         new net::FakeURLFetcherFactory(&url_fetcher_impl_factory_));
     InProcessBrowserTest::SetUp();
   }
 
  protected:
   net::URLFetcherImplFactory url_fetcher_impl_factory_;
   scoped_ptr<net::FakeURLFetcherFactory> url_fetcher_factory_;
 };
 
@@ skipping 107 matching lines @@
       net::URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,
       net::LOAD_NORMAL);
 
   // Blocks until test delegate is notified via a callback.
   delegate.Wait();
 
   EXPECT_FALSE(delegate.success());
 }
 
 }  // namespace chrome