Introduce ScopedCommandLine

chrome/browser/chromeos/events/event_rewriter_unittest.cc

 // Copyright 2014 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/browser/chromeos/events/event_rewriter.h"
 
 #include <vector>
 
 #include "ash/shell.h"
 #include "ash/sticky_keys/sticky_keys_controller.h"
@@ skipping 471 matching lines @@
     CheckKeyTestCase(&rewriter, test);
   }
 }
 
 TEST_F(EventRewriterTest, TestRewriteNumPadKeys) {
   TestRewriteNumPadKeys();
 }
 
 TEST_F(EventRewriterTest, TestRewriteNumPadKeysWithDiamondKeyFlag) {
   // Make sure the num lock works correctly even when Diamond key exists.
-  const base::CommandLine original_cl(*base::CommandLine::ForCurrentProcess());
   base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
       chromeos::switches::kHasChromeOSDiamondKey, "");
-
   TestRewriteNumPadKeys();
-  *base::CommandLine::ForCurrentProcess() = original_cl;
 }
 
 // Tests if the rewriter can handle a Command + Num Pad event.
 void EventRewriterTest::TestRewriteNumPadKeysOnAppleKeyboard() {
   syncable_prefs::TestingPrefServiceSyncable prefs;
   EventRewriter rewriter(NULL);
   rewriter.KeyboardDeviceAddedForTesting(kKeyboardDeviceId, "Apple Keyboard");
   rewriter.set_last_keyboard_device_id_for_testing(kKeyboardDeviceId);
   rewriter.set_pref_service_for_testing(&prefs);
 
@@ skipping 2121 matching lines @@
   EXPECT_FALSE(overlay_->GetModifierVisible(ui::EF_ALTGR_DOWN));
   EXPECT_TRUE(overlay_->GetModifierVisible(ui::EF_MOD3_DOWN));
 
   // Turn off AltGr and Mod3.
   sticky_keys_controller_->SetModifiersEnabled(false, false);
   EXPECT_FALSE(overlay_->GetModifierVisible(ui::EF_ALTGR_DOWN));
   EXPECT_FALSE(overlay_->GetModifierVisible(ui::EF_MOD3_DOWN));
 }
 
 }  // namespace chromeos