Standardize usage of virtual/override/final in components/

components/precache/content/precache_manager_unittest.cc

 // Copyright 2013 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 "components/precache/content/precache_manager.h"
 
 #include <list>
 #include <map>
 #include <set>
 #include <string>
@@ skipping 71 matching lines @@
   std::multiset<GURL> requested_urls_;
 };
 
 class FakeURLListProvider : public URLListProvider {
  public:
   FakeURLListProvider(const std::list<GURL>& urls, bool run_immediately)
       : urls_(urls),
         run_immediately_(run_immediately),
         was_get_urls_called_(false) {}
 
-  virtual void GetURLs(const GetURLsCallback& callback) override {
+  void GetURLs(const GetURLsCallback& callback) override {
     was_get_urls_called_ = true;
 
     if (run_immediately_) {
       callback.Run(urls_);
     } else {
       // Post the callback to be run later in the message loop.
       base::MessageLoop::current()->PostTask(FROM_HERE,
                                              base::Bind(callback, urls_));
     }
   }
@@ skipping 246 matching lines @@
       kCurrentTime, 1000, true);
   expected_histogram_count_map["Precache.Saved"] += 2;
 
   base::MessageLoop::current()->RunUntilIdle();
   EXPECT_EQ(expected_histogram_count_map, GetHistogramCountMap());
 }
 
 }  // namespace
 
 }  // namespace precache