Replace ScopedCommandLineOverride with TestSuite listener.

chrome/test/base/scoped_command_line_override.cc

Index: chrome/test/base/scoped_command_line_override.cc
diff --git a/chrome/test/base/scoped_command_line_override.cc b/chrome/test/base/scoped_command_line_override.cc
deleted file mode 100644
index bd4cb30a2ccb8f32aad22be81e42eda94a695957..0000000000000000000000000000000000000000
--- a/chrome/test/base/scoped_command_line_override.cc
+++ /dev/null
@@ -1,15 +0,0 @@
-// 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.
-
-#include "chrome/test/base/scoped_command_line_override.h"
-
-ScopedCommandLineOverride::ScopedCommandLineOverride(
-    const std::string& new_switch)
-    : old_command_line_(*CommandLine::ForCurrentProcess()) {
-  CommandLine::ForCurrentProcess()->AppendSwitch(new_switch);
-}
-
-ScopedCommandLineOverride::~ScopedCommandLineOverride() {
-  *CommandLine::ForCurrentProcess() = old_command_line_;
-}