Standardize usage of virtual/override/final specifiers.

chrome/browser/net/quota_policy_channel_id_store_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 "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 49 matching lines @@
     exploded_time.month = 12;
     exploded_time.day_of_week = 0;  // Unused.
     exploded_time.day_of_month = 13;
     exploded_time.hour = 2;
     exploded_time.minute = 23;
     exploded_time.second = 45;
     exploded_time.millisecond = 0;
     return base::Time::FromUTCExploded(exploded_time);
   }
 
-  virtual void SetUp() {
+  void SetUp() override {
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     store_ = new QuotaPolicyChannelIDStore(
         temp_dir_.path().Append(kTestChannelIDFilename),
         base::ThreadTaskRunnerHandle::Get(),
         NULL);
     ScopedVector<net::DefaultChannelIDStore::ChannelID> channel_ids;
     Load(&channel_ids);
     ASSERT_EQ(0u, channel_ids.size());
     // Make sure the store gets written at least once.
     store_->AddChannelID(
         net::DefaultChannelIDStore::ChannelID("google.com",
                                               base::Time::FromInternalValue(1),
                                               base::Time::FromInternalValue(2),
                                               "a",
                                               "b"));
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     store_ = NULL;
     loop_.RunUntilIdle();
   }
 
   base::ScopedTempDir temp_dir_;
   scoped_refptr<QuotaPolicyChannelIDStore> store_;
   ScopedVector<net::DefaultChannelIDStore::ChannelID> channel_ids_;
   base::MessageLoop loop_;
 };
 
@@ skipping 95 matching lines @@
   store_ = new QuotaPolicyChannelIDStore(
       temp_dir_.path().Append(kTestChannelIDFilename),
       base::MessageLoopProxy::current(),
       NULL);
 
   // Reload and check that the "foo.com" cert has been removed.
   Load(&channel_ids);
   ASSERT_EQ(1U, channel_ids.size());
   ASSERT_EQ("google.com", channel_ids[0]->server_identifier());
 }