Standardize usage of virtual/override/final specifiers.

chrome/browser/sync/test/integration/multiple_client_bookmarks_sync_test.cc

 // Copyright (c) 2011 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 "base/strings/stringprintf.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/test/integration/bookmarks_helper.h"
 #include "chrome/browser/sync/test/integration/sync_test.h"
 
 using bookmarks_helper::AddURL;
 using bookmarks_helper::AwaitAllModelsMatch;
 
 class MultipleClientBookmarksSyncTest : public SyncTest {
  public:
   MultipleClientBookmarksSyncTest() : SyncTest(MULTIPLE_CLIENT) {}
-  virtual ~MultipleClientBookmarksSyncTest() {}
+  ~MultipleClientBookmarksSyncTest() override {}
 
   bool TestUsesSelfNotifications() override { return false; }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MultipleClientBookmarksSyncTest);
 };
 
 IN_PROC_BROWSER_TEST_F(MultipleClientBookmarksSyncTest, Sanity) {
   ASSERT_TRUE(SetupSync()) << "SetupSync() failed.";
   DisableVerifier();
   for (int i = 0; i < num_clients(); ++i) {
     ASSERT_TRUE(AddURL(i, base::StringPrintf("Google URL %d", i),
         GURL(base::StringPrintf("http://www.google.com/%d", i))) != NULL);
   }
   ASSERT_TRUE(AwaitAllModelsMatch());
 }