Use exactly one of final, override, and virtual

minidump/minidump_thread_writer.h

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 89 matching lines @@
   }
 
   //! \brief Sets MINIDUMP_THREAD::Priority.
   void SetPriority(uint32_t priority) { thread_.Priority = priority; }
 
   //! \brief Sets MINIDUMP_THREAD::Teb.
   void SetTEB(uint64_t teb) { thread_.Teb = teb; }
 
  protected:
   // MinidumpWritable:
-  virtual bool Freeze() override;
-  virtual size_t SizeOfObject() override;
-  virtual std::vector<MinidumpWritable*> Children() override;
-  virtual bool WriteObject(FileWriterInterface* file_writer) override;
+  bool Freeze() override;
+  size_t SizeOfObject() override;
+  std::vector<MinidumpWritable*> Children() override;
+  bool WriteObject(FileWriterInterface* file_writer) override;
 
  private:
   MINIDUMP_THREAD thread_;
   MinidumpMemoryWriter* stack_;  // weak
   MinidumpContextWriter* context_;  // weak
 
   DISALLOW_COPY_AND_ASSIGN(MinidumpThreadWriter);
 };
 
 //! \brief The writer for a MINIDUMP_THREAD_LIST stream in a minidump file,
@@ skipping 33 matching lines @@
   //! \brief Adds a MinidumpThreadWriter to the MINIDUMP_THREAD_LIST.
   //!
   //! \a thread will become a child of this object in the overall tree of
   //! internal::MinidumpWritable objects.
   //!
   //! \note Valid in #kStateMutable.
   void AddThread(MinidumpThreadWriter* thread);
 
  protected:
   // MinidumpWritable:
-  virtual bool Freeze() override;
-  virtual size_t SizeOfObject() override;
-  virtual std::vector<MinidumpWritable*> Children() override;
-  virtual bool WriteObject(FileWriterInterface* file_writer) override;
+  bool Freeze() override;
+  size_t SizeOfObject() override;
+  std::vector<MinidumpWritable*> Children() override;
+  bool WriteObject(FileWriterInterface* file_writer) override;
 
   // MinidumpStreamWriter:
-  virtual MinidumpStreamType StreamType() const override;
+  MinidumpStreamType StreamType() const override;
 
  private:
   MINIDUMP_THREAD_LIST thread_list_base_;
   std::vector<MinidumpThreadWriter*> threads_;  // weak
   MinidumpMemoryListWriter* memory_list_writer_;  // weak
 
   DISALLOW_COPY_AND_ASSIGN(MinidumpThreadListWriter);
 };
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_MINIDUMP_MINIDUMP_THREAD_WRITER_H_