Standardize usage of virtual/override/final specifiers.

content/browser/fileapi/file_system_file_stream_reader_unittest.cc

 // Copyright 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.
 
 #include "storage/browser/fileapi/file_system_file_stream_reader.h"
 
 #include <limits>
 #include <string>
 
 #include "base/files/scoped_temp_dir.h"
@@ skipping 49 matching lines @@
 }
 
 void NeverCalled(int unused) { ADD_FAILURE(); }
 
 }  // namespace
 
 class FileSystemFileStreamReaderTest : public testing::Test {
  public:
   FileSystemFileStreamReaderTest() {}
 
-  virtual void SetUp() override {
+  void SetUp() override {
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 
     file_system_context_ = CreateFileSystemContextForTesting(
         NULL, temp_dir_.path());
 
     file_system_context_->OpenFileSystem(
         GURL(kURLOrigin),
         storage::kFileSystemTypeTemporary,
         storage::OPEN_FILE_SYSTEM_CREATE_IF_NONEXISTENT,
         base::Bind(&OnOpenFileSystem));
     base::RunLoop().RunUntilIdle();
 
     WriteFile(kTestFileName, kTestData, kTestDataSize,
               &test_file_modification_time_);
   }
 
-  virtual void TearDown() override {
-    base::RunLoop().RunUntilIdle();
-  }
+  void TearDown() override { base::RunLoop().RunUntilIdle(); }
 
  protected:
   storage::FileSystemFileStreamReader* CreateFileReader(
       const std::string& file_name,
       int64 initial_offset,
       const base::Time& expected_modification_time) {
     return new FileSystemFileStreamReader(file_system_context_.get(),
                                           GetFileSystemURL(file_name),
                                           initial_offset,
                                           expected_modification_time);
@@ skipping 163 matching lines @@
       new net::IOBufferWithSize(kTestDataSize));
   int rv = reader->Read(buf.get(), buf->size(), base::Bind(&NeverCalled));
   ASSERT_TRUE(rv == net::ERR_IO_PENDING || rv >= 0);
 
   // Delete immediately.
   // Should not crash; nor should NeverCalled be callback.
   reader.reset();
 }
 
 }  // namespace content