Use exactly one of final, override, and virtual

minidump/minidump_system_info_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 148 matching lines @@
   //! This is only valid if SetCPUArchitecture() has been used to set the CPU
   //! architecture to an architecture other than #kMinidumpCPUArchitectureX86
   //! or #kMinidumpCPUArchitectureX86Win64.
   //!
   //! \note This method may be called if SetCPUArchitecture() has been used to
   //!     set the CPU architecture to #kMinidumpCPUArchitectureAMD64.
   void SetCPUOtherFeatures(uint64_t features_0, uint64_t features_1);
 
  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_SYSTEM_INFO system_info_;
   scoped_ptr<internal::MinidumpUTF16StringWriter> csd_version_;
 
   DISALLOW_COPY_AND_ASSIGN(MinidumpSystemInfoWriter);
 };
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_MINIDUMP_MINIDUMP_SYSTEM_INFO_WRITER_H_