Add OVERRIDE to chrome/browser/extensions/.

chrome/browser/extensions/extension_devtools_browsertest.h

Index: chrome/browser/extensions/extension_devtools_browsertest.h
diff --git a/chrome/browser/extensions/extension_devtools_browsertest.h b/chrome/browser/extensions/extension_devtools_browsertest.h
index 1f7c3ee2522309a6660e07b2a71a1730b8936001..c3c9286763a70871a1cdb3d181d0328c3bc0f269 100644
--- a/chrome/browser/extensions/extension_devtools_browsertest.h
+++ b/chrome/browser/extensions/extension_devtools_browsertest.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -14,7 +14,7 @@ class CommandLine;
 // command line features.
 class ExtensionDevToolsBrowserTest : public ExtensionBrowserTest {
  protected:
-  virtual void SetUpCommandLine(CommandLine* command_line);
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_DEVTOOLS_BROWSERTEST_H_