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

chrome/browser/bookmarks/bookmark_html_writer_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 "chrome/browser/bookmarks/bookmark_html_writer.h"
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/i18n/time_formatting.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
@@ skipping 112 matching lines @@
   base::FilePath path_;
 };
 
 // Class that will notify message loop when file is written.
 class BookmarksObserver : public BookmarksExportObserver {
  public:
   explicit BookmarksObserver(base::RunLoop* loop) : loop_(loop) {
     DCHECK(loop);
   }
 
-  virtual void OnExportFinished() override {
-    loop_->Quit();
-  }
+  void OnExportFinished() override { loop_->Quit(); }
 
  private:
   base::RunLoop* loop_;
 
   DISALLOW_COPY_AND_ASSIGN(BookmarksObserver);
 };
 
 // Tests bookmark_html_writer by populating a BookmarkModel, writing it out by
 // way of bookmark_html_writer, then using the importer to read it back in.
 TEST_F(BookmarkHTMLWriterTest, Test) {
@@ skipping 139 matching lines @@
   AssertBookmarkEntryEquals(parsed_bookmarks[6], false, url1, url1_title, t1,
                             f3_title, f4_title, base::string16());
   AssertBookmarkEntryEquals(parsed_bookmarks[7], false, url1, url1_title, t1,
                             base::string16(), base::string16(),
                             base::string16());
   AssertBookmarkEntryEquals(parsed_bookmarks[8], false, unnamed_bookmark_url,
                             unnamed_bookmark_title, t2,
                             base::string16(), base::string16(),
                             base::string16());
 }