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

content/browser/indexed_db/indexed_db_database_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 "content/browser/indexed_db/indexed_db_database.h"
 
 #include <set>
 
 #include "base/auto_reset.h"
 #include "base/logging.h"
@@ skipping 140 matching lines @@
   EXPECT_TRUE(callbacks->abort_called());
 }
 
 class MockDeleteCallbacks : public IndexedDBCallbacks {
  public:
   MockDeleteCallbacks()
       : IndexedDBCallbacks(NULL, 0, 0),
         blocked_called_(false),
         success_called_(false) {}
 
-  virtual void OnBlocked(int64 existing_version) override {
-    blocked_called_ = true;
-  }
-  virtual void OnSuccess(int64 result) override { success_called_ = true; }
+  void OnBlocked(int64 existing_version) override { blocked_called_ = true; }
+  void OnSuccess(int64 result) override { success_called_ = true; }
 
   bool blocked_called() const { return blocked_called_; }
   bool success_called() const { return success_called_; }
 
  private:
-  virtual ~MockDeleteCallbacks() {}
+  ~MockDeleteCallbacks() override {}
 
   bool blocked_called_;
   bool success_called_;
 
   DISALLOW_COPY_AND_ASSIGN(MockDeleteCallbacks);
 };
 
 TEST(IndexedDBDatabaseTest, PendingDelete) {
   scoped_refptr<IndexedDBFakeBackingStore> backing_store =
       new IndexedDBFakeBackingStore();
@@ skipping 231 matching lines @@
   EXPECT_EQ(1ULL, db_->metadata().object_stores.size());
 
   // This will execute the Put then Delete.
   RunPostedTasks();
   EXPECT_EQ(0ULL, db_->metadata().object_stores.size());
 
   transaction_->Commit();  // Cleans up the object hierarchy.
 }
 
 }  // namespace content