Use exactly one of final, override, and virtual

minidump/minidump_file_writer_test.cc

 // 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 34 matching lines @@
 class TestStream final : public internal::MinidumpStreamWriter {
  public:
   TestStream(MinidumpStreamType stream_type,
              size_t stream_size,
              uint8_t stream_value)
       : stream_data_(stream_size, stream_value), stream_type_(stream_type) {}
 
   ~TestStream() {}
 
   // MinidumpStreamWriter:
-  virtual MinidumpStreamType StreamType() const override {
+  MinidumpStreamType StreamType() const override {
     return stream_type_;
   }
 
  protected:
   // MinidumpWritable:
-  virtual size_t SizeOfObject() override {
+  size_t SizeOfObject() override {
     EXPECT_GE(state(), kStateFrozen);
     return stream_data_.size();
   }
 
-  virtual bool WriteObject(FileWriterInterface* file_writer) override {
+  bool WriteObject(FileWriterInterface* file_writer) override {
     EXPECT_EQ(state(), kStateWritable);
     return file_writer->Write(&stream_data_[0], stream_data_.size());
   }
 
  private:
   std::string stream_data_;
   MinidumpStreamType stream_type_;
 
   DISALLOW_COPY_AND_ASSIGN(TestStream);
 };
@@ skipping 167 matching lines @@
   const size_t kStream2Size = 3;
   const MinidumpStreamType kStream2Type = static_cast<MinidumpStreamType>(0x4d);
   const uint8_t kStream2Value = 0xa5;
   TestStream stream2(kStream2Type, kStream2Size, kStream2Value);
   ASSERT_DEATH(minidump_file.AddStream(&stream2), "already present");
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace crashpad