Standardize usage of virtual/override/final in storage/

storage/browser/fileapi/copy_or_move_operation_delegate.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 STORAGE_BROWSER_FILEAPI_COPY_OR_MOVE_OPERATION_DELEGATE_H_
 #define STORAGE_BROWSER_FILEAPI_COPY_OR_MOVE_OPERATION_DELEGATE_H_
 
 #include <set>
 #include <stack>
 
@@ skipping 80 matching lines @@
   };
 
   CopyOrMoveOperationDelegate(
       FileSystemContext* file_system_context,
       const FileSystemURL& src_root,
       const FileSystemURL& dest_root,
       OperationType operation_type,
       CopyOrMoveOption option,
       const CopyProgressCallback& progress_callback,
       const StatusCallback& callback);
-  virtual ~CopyOrMoveOperationDelegate();
+  ~CopyOrMoveOperationDelegate() override;
 
   // RecursiveOperationDelegate overrides:
-  virtual void Run() override;
-  virtual void RunRecursively() override;
-  virtual void ProcessFile(const FileSystemURL& url,
-                           const StatusCallback& callback) override;
-  virtual void ProcessDirectory(const FileSystemURL& url,
-                                const StatusCallback& callback) override;
-  virtual void PostProcessDirectory(const FileSystemURL& url,
-                                    const StatusCallback& callback) override;
-
+  void Run() override;
+  void RunRecursively() override;
+  void ProcessFile(const FileSystemURL& url,
+                   const StatusCallback& callback) override;
+  void ProcessDirectory(const FileSystemURL& url,
+                        const StatusCallback& callback) override;
+  void PostProcessDirectory(const FileSystemURL& url,
+                            const StatusCallback& callback) override;
 
  protected:
-  virtual void OnCancel() override;
+  void OnCancel() override;
 
  private:
   void DidCopyOrMoveFile(const FileSystemURL& src_url,
                          const FileSystemURL& dest_url,
                          const StatusCallback& callback,
                          CopyOrMoveImpl* impl,
                          base::File::Error error);
   void DidTryRemoveDestRoot(const StatusCallback& callback,
                             base::File::Error error);
   void ProcessDirectoryInternal(const FileSystemURL& src_url,
@@ skipping 27 matching lines @@
 
   std::set<CopyOrMoveImpl*> running_copy_set_;
   base::WeakPtrFactory<CopyOrMoveOperationDelegate> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CopyOrMoveOperationDelegate);
 };
 
 }  // namespace storage
 
 #endif  // STORAGE_BROWSER_FILEAPI_COPY_OR_MOVE_OPERATION_DELEGATE_H_