Standardize usage of virtual/override/final in net/

net/disk_cache/memory/mem_backend_impl.h

 // Copyright (c) 2012 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.
 
 // See net/disk_cache/disk_cache.h for the public interface of the cache.
 
 #ifndef NET_DISK_CACHE_MEMORY_MEM_BACKEND_IMPL_H_
 #define NET_DISK_CACHE_MEMORY_MEM_BACKEND_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/weak_ptr.h"
 #include "net/disk_cache/disk_cache.h"
 #include "net/disk_cache/memory/mem_rankings.h"
 
 namespace net {
 class NetLog;
 }  // namespace net
 
 namespace disk_cache {
 
 class MemEntryImpl;
 
 // This class implements the Backend interface. An object of this class handles
 // the operations of the cache without writing to disk.
 class NET_EXPORT_PRIVATE MemBackendImpl : public Backend {
  public:
   explicit MemBackendImpl(net::NetLog* net_log);
-  virtual ~MemBackendImpl();
+  ~MemBackendImpl() override;
 
   // Returns an instance of a Backend implemented only in memory. The returned
   // object should be deleted when not needed anymore. max_bytes is the maximum
   // size the cache can grow to. If zero is passed in as max_bytes, the cache
   // will determine the value to use based on the available memory. The returned
   // pointer can be NULL if a fatal error is found.
   static scoped_ptr<Backend> CreateBackend(int max_bytes, net::NetLog* net_log);
 
   // Performs general initialization for this current instance of the cache.
   bool Init();
@@ skipping 16 matching lines @@
   // Insert an MemEntryImpl into the ranking list. This method is only called
   // from MemEntryImpl to insert child entries. The reference can be removed
   // by calling RemoveFromRankingList(|entry|).
   void InsertIntoRankingList(MemEntryImpl* entry);
 
   // Remove |entry| from ranking list. This method is only called from
   // MemEntryImpl to remove a child entry from the ranking list.
   void RemoveFromRankingList(MemEntryImpl* entry);
 
   // Backend interface.
-  virtual net::CacheType GetCacheType() const override;
-  virtual int32 GetEntryCount() const override;
-  virtual int OpenEntry(const std::string& key, Entry** entry,
-                        const CompletionCallback& callback) override;
-  virtual int CreateEntry(const std::string& key, Entry** entry,
-                          const CompletionCallback& callback) override;
-  virtual int DoomEntry(const std::string& key,
-                        const CompletionCallback& callback) override;
-  virtual int DoomAllEntries(const CompletionCallback& callback) override;
-  virtual int DoomEntriesBetween(base::Time initial_time,
-                                 base::Time end_time,
-                                 const CompletionCallback& callback) override;
-  virtual int DoomEntriesSince(base::Time initial_time,
-                               const CompletionCallback& callback) override;
-  virtual scoped_ptr<Iterator> CreateIterator() override;
-  virtual void GetStats(
-      std::vector<std::pair<std::string, std::string> >* stats) override {}
-  virtual void OnExternalCacheHit(const std::string& key) override;
+  net::CacheType GetCacheType() const override;
+  int32 GetEntryCount() const override;
+  int OpenEntry(const std::string& key,
+                Entry** entry,
+                const CompletionCallback& callback) override;
+  int CreateEntry(const std::string& key,
+                  Entry** entry,
+                  const CompletionCallback& callback) override;
+  int DoomEntry(const std::string& key,
+                const CompletionCallback& callback) override;
+  int DoomAllEntries(const CompletionCallback& callback) override;
+  int DoomEntriesBetween(base::Time initial_time,
+                         base::Time end_time,
+                         const CompletionCallback& callback) override;
+  int DoomEntriesSince(base::Time initial_time,
+                       const CompletionCallback& callback) override;
+  scoped_ptr<Iterator> CreateIterator() override;
+  void GetStats(
+      std::vector<std::pair<std::string, std::string>>* stats) override {}
+  void OnExternalCacheHit(const std::string& key) override;
 
  private:
   class MemIterator;
   friend class MemIterator;
 
   typedef base::hash_map<std::string, MemEntryImpl*> EntryMap;
 
   // Old Backend interface.
   bool OpenEntry(const std::string& key, Entry** entry);
   bool CreateEntry(const std::string& key, Entry** entry);
@@ skipping 20 matching lines @@
   net::NetLog* net_log_;
 
   base::WeakPtrFactory<MemBackendImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MemBackendImpl);
 };
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_MEMORY_MEM_BACKEND_IMPL_H_