Standardize usage of virtual/override/final specifiers.

content/browser/quota/quota_temporary_storage_evictor_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 <list>
 #include <map>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 123 matching lines @@
 };
 
 }  // namespace
 
 class QuotaTemporaryStorageEvictorTest : public testing::Test {
  public:
   QuotaTemporaryStorageEvictorTest()
       : num_get_usage_and_quota_for_eviction_(0),
         weak_factory_(this) {}
 
-  virtual void SetUp() {
+  void SetUp() override {
     quota_eviction_handler_.reset(new MockQuotaEvictionHandler(this));
 
     // Run multiple evictions in a single RunUntilIdle() when interval_ms == 0
     temporary_storage_evictor_.reset(new QuotaTemporaryStorageEvictor(
         quota_eviction_handler_.get(), 0));
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     temporary_storage_evictor_.reset();
     quota_eviction_handler_.reset();
     base::RunLoop().RunUntilIdle();
   }
 
   void TaskForRepeatedEvictionTest(
       const std::pair<GURL, int64>& origin_to_be_added,
       const GURL& origin_to_be_accessed,
       int expected_usage_after_first,
       int expected_usage_after_second) {
@@ skipping 240 matching lines @@
   EXPECT_EQ(150 + 300, quota_eviction_handler()->GetUsage());
 
   EXPECT_EQ(0, statistics().num_errors_on_evicting_origin);
   EXPECT_EQ(0, statistics().num_errors_on_getting_usage_and_quota);
   EXPECT_EQ(2, statistics().num_evicted_origins);
   EXPECT_EQ(1, statistics().num_eviction_rounds);
   EXPECT_EQ(0, statistics().num_skipped_eviction_rounds);
 }
 
 }  // namespace content