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

content/browser/indexed_db/leveldb/leveldb_database.h

 // Copyright (c) 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.
 
 #ifndef CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_DATABASE_H_
 #define CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_DATABASE_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
@@ skipping 41 matching lines @@
  private:
   DISALLOW_COPY_AND_ASSIGN(LevelDBLock);
 };
 
 class CONTENT_EXPORT LevelDBDatabase {
  public:
   class ComparatorAdapter : public leveldb::Comparator {
    public:
     explicit ComparatorAdapter(const LevelDBComparator* comparator);
 
-    virtual int Compare(const leveldb::Slice& a,
-                        const leveldb::Slice& b) const override;
+    int Compare(const leveldb::Slice& a,
+                const leveldb::Slice& b) const override;
 
-    virtual const char* Name() const override;
+    const char* Name() const override;
 
-    virtual void FindShortestSeparator(std::string* start,
-                                       const leveldb::Slice& limit) const
-        override;
-    virtual void FindShortSuccessor(std::string* key) const override;
+    void FindShortestSeparator(std::string* start,
+                               const leveldb::Slice& limit) const override;
+    void FindShortSuccessor(std::string* key) const override;
 
    private:
     const LevelDBComparator* comparator_;
   };
 
   static leveldb::Status Open(const base::FilePath& file_name,
                               const LevelDBComparator* comparator,
                               scoped_ptr<LevelDBDatabase>* db,
                               bool* is_disk_full = 0);
   static scoped_ptr<LevelDBDatabase> OpenInMemory(
@@ skipping 24 matching lines @@
   scoped_ptr<leveldb::Env> env_;
   scoped_ptr<leveldb::Comparator> comparator_adapter_;
   scoped_ptr<leveldb::DB> db_;
   scoped_ptr<const leveldb::FilterPolicy> filter_policy_;
   const LevelDBComparator* comparator_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_DATABASE_H_