Standardize usage of virtual/override/final specifiers.

content/browser/fileapi/local_file_util_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 <string>
 
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 25 matching lines @@
 
 const GURL kOrigin("http://foo/");
 const storage::FileSystemType kFileSystemType = storage::kFileSystemTypeTest;
 
 }  // namespace
 
 class LocalFileUtilTest : public testing::Test {
  public:
   LocalFileUtilTest() {}
 
-  virtual void SetUp() {
+  void SetUp() override {
     ASSERT_TRUE(data_dir_.CreateUniqueTempDir());
     file_system_context_ = CreateFileSystemContextForTesting(
         NULL, data_dir_.path());
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     file_system_context_ = NULL;
     base::RunLoop().RunUntilIdle();
   }
 
  protected:
   FileSystemOperationContext* NewContext() {
     FileSystemOperationContext* context =
         new FileSystemOperationContext(file_system_context_.get());
     context->set_update_observers(
         *file_system_context_->GetUpdateObservers(kFileSystemType));
@@ skipping 305 matching lines @@
                                       CreateURL(from_dir),
                                       CreateURL(to_dir)));
 
   EXPECT_FALSE(DirectoryExists(from_dir));
   EXPECT_TRUE(DirectoryExists(to_dir));
   EXPECT_TRUE(FileExists(to_file));
   EXPECT_EQ(1020, GetSize(to_file));
 }
 
 }  // namespace content