Standardize usage of virtual/override/final specifiers.

components/nacl/browser/nacl_file_host_unittest.cc

 // Copyright (c) 2012 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 "components/nacl/browser/nacl_file_host.h"
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/test/scoped_path_override.h"
@@ skipping 17 matching lines @@
     pnacl_path_ = pnacl_dir;
   }
 
  private:
   base::FilePath pnacl_path_;
 };
 
 class NaClFileHostTest : public testing::Test {
  protected:
   NaClFileHostTest();
-  virtual ~NaClFileHostTest();
+  ~NaClFileHostTest() override;
 
-  virtual void SetUp() override {
+  void SetUp() override {
     nacl_browser_delegate_ = new FileHostTestNaClBrowserDelegate;
     nacl::NaClBrowser::SetDelegate(nacl_browser_delegate_);
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     // This deletes nacl_browser_delegate_.
     nacl::NaClBrowser::SetDelegate(NULL);
   }
 
   FileHostTestNaClBrowserDelegate* nacl_browser_delegate() {
     return nacl_browser_delegate_;
   }
 
  private:
   FileHostTestNaClBrowserDelegate* nacl_browser_delegate_;
@@ skipping 54 matching lines @@
   EXPECT_FALSE(PnaclCanOpenFile("..\\llc", &out_path));
   EXPECT_FALSE(PnaclCanOpenFile("%SystemRoot%", &out_path));
   EXPECT_FALSE(PnaclCanOpenFile("%SystemRoot%\\explorer.exe", &out_path));
 #else
   EXPECT_FALSE(PnaclCanOpenFile("../llc", &out_path));
   EXPECT_FALSE(PnaclCanOpenFile("/bin/sh", &out_path));
   EXPECT_FALSE(PnaclCanOpenFile("$HOME", &out_path));
   EXPECT_FALSE(PnaclCanOpenFile("$HOME/.bashrc", &out_path));
 #endif
 }