Standardize usage of virtual/override/final specifiers.

content/browser/fileapi/file_system_operation_impl_write_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 <vector>
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 45 matching lines @@
   FileSystemOperationImplWriteTest()
       : status_(base::File::FILE_OK),
         cancel_status_(base::File::FILE_ERROR_FAILED),
         bytes_written_(0),
         complete_(false),
         weak_factory_(this) {
     change_observers_ =
         storage::MockFileChangeObserver::CreateList(&change_observer_);
   }
 
-  virtual void SetUp() {
+  void SetUp() override {
     ASSERT_TRUE(dir_.CreateUniqueTempDir());
 
     quota_manager_ =
         new MockQuotaManager(false /* is_incognito */,
                                     dir_.path(),
                                     base::MessageLoopProxy::current().get(),
                                     base::MessageLoopProxy::current().get(),
                                     NULL /* special storage policy */);
     virtual_path_ = base::FilePath(FILE_PATH_LITERAL("temporary file"));
 
     file_system_context_ = CreateFileSystemContextForTesting(
         quota_manager_->proxy(), dir_.path());
     url_request_context_.reset(
         new MockBlobURLRequestContext(file_system_context_.get()));
 
     file_system_context_->operation_runner()->CreateFile(
         URLForPath(virtual_path_), true /* exclusive */,
         base::Bind(&AssertStatusEq, base::File::FILE_OK));
 
     static_cast<TestFileSystemBackend*>(
         file_system_context_->GetFileSystemBackend(kFileSystemType))
         ->AddFileChangeObserver(change_observer());
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     quota_manager_ = NULL;
     file_system_context_ = NULL;
     base::RunLoop().RunUntilIdle();
   }
 
   base::File::Error status() const { return status_; }
   base::File::Error cancel_status() const { return cancel_status_; }
   void add_bytes_written(int64 bytes, bool complete) {
     bytes_written_ += bytes;
     EXPECT_FALSE(complete_);
@@ skipping 221 matching lines @@
   EXPECT_EQ(base::File::FILE_ERROR_ABORT, status());
   EXPECT_EQ(base::File::FILE_OK, cancel_status());
   EXPECT_TRUE(complete());
 
   EXPECT_EQ(0, change_observer()->get_and_reset_modify_file_count());
 }
 
 // TODO(ericu,dmikurube,kinuko): Add more tests for cancel cases.
 
 }  // namespace content