Use exactly one of final, override, and virtual

snapshot/system_snapshot_mac.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 40 matching lines @@
   //!     \n\n
   //!     This parameter is necessary for TimeZone() to determine whether
   //!     daylight saving time was in effect at the time the snapshot was taken.
   //!     Otherwise, it would need to base its determination on the current
   //!     time, which may be different than the snapshot time for snapshots
   //!     generated around the daylight saving transition time.
   void Initialize(ProcessReader* process_reader, const timeval* snapshot_time);
 
   // SystemSnapshot:
 
-  virtual CPUArchitecture GetCPUArchitecture() const override;
-  virtual uint32_t CPURevision() const override;
-  virtual uint8_t CPUCount() const override;
-  virtual std::string CPUVendor() const override;
-  virtual void CPUFrequency(uint64_t* current_hz,
-                            uint64_t* max_hz) const override;
-  virtual uint32_t CPUX86Signature() const override;
-  virtual uint64_t CPUX86Features() const override;
-  virtual uint64_t CPUX86ExtendedFeatures() const override;
-  virtual uint32_t CPUX86Leaf7Features() const override;
-  virtual bool CPUX86SupportsDAZ() const override;
-  virtual OperatingSystem GetOperatingSystem() const override;
-  virtual bool OSServer() const override;
-  virtual void OSVersion(int* major,
-                         int* minor,
-                         int* bugfix,
-                         std::string* build) const override;
-  virtual std::string OSVersionFull() const override;
-  virtual bool NXEnabled() const override;
-  virtual std::string MachineDescription() const override;
-  virtual void TimeZone(DaylightSavingTimeStatus* dst_status,
-                        int* standard_offset_seconds,
-                        int* daylight_offset_seconds,
-                        std::string* standard_name,
-                        std::string* daylight_name) const override;
+  CPUArchitecture GetCPUArchitecture() const override;
+  uint32_t CPURevision() const override;
+  uint8_t CPUCount() const override;
+  std::string CPUVendor() const override;
+  void CPUFrequency(uint64_t* current_hz, uint64_t* max_hz) const override;
+  uint32_t CPUX86Signature() const override;
+  uint64_t CPUX86Features() const override;
+  uint64_t CPUX86ExtendedFeatures() const override;
+  uint32_t CPUX86Leaf7Features() const override;
+  bool CPUX86SupportsDAZ() const override;
+  OperatingSystem GetOperatingSystem() const override;
+  bool OSServer() const override;
+  void OSVersion(
+      int* major, int* minor, int* bugfix, std::string* build) const override;
+  std::string OSVersionFull() const override;
+  bool NXEnabled() const override;
+  std::string MachineDescription() const override;
+  void TimeZone(DaylightSavingTimeStatus* dst_status,
+                int* standard_offset_seconds,
+                int* daylight_offset_seconds,
+                std::string* standard_name,
+                std::string* daylight_name) const override;
 
  private:
   std::string os_version_full_;
   std::string os_version_build_;
   ProcessReader* process_reader_;  // weak
   const timeval* snapshot_time_;  // weak
   int os_version_major_;
   int os_version_minor_;
   int os_version_bugfix_;
   bool os_server_;
   InitializationStateDcheck initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(SystemSnapshotMac);
 };
 
 }  // namespace internal
 }  // namespace crashpad
 
 #endif  // CRASHPAD_SNAPSHOT_SYSTEM_SNAPSHOT_MAC_H_