Cleanup: Better constify some strings in chrome/browser/{chromeos,extensions}.

chrome/browser/chromeos/preferences_browsertest.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 <sys/types.h>
 
 #include "ash/shell.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/prefs/pref_service.h"
@@ skipping 14 matching lines @@
 #include "components/feedback/tracing_manager.h"
 #include "components/user_manager/user_manager.h"
 #include "content/public/test/test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/event_utils.h"
 
 namespace chromeos {
 
 namespace {
 
-const char* kTestUsers[] = {"test-user1@gmail.com", "test-user2@gmail.com"};
+const char* const kTestUsers[] = {"test-user1@gmail.com",
+                                  "test-user2@gmail.com"};
 
 }  // namespace
 
 class PreferencesTest : public LoginManagerTest {
  public:
   PreferencesTest()
       : LoginManagerTest(true),
         input_settings_(NULL),
         keyboard_(NULL) {}
 
@@ skipping 155 matching lines @@
                      !prefs1->GetBoolean(prefs::kTapToClickEnabled));
   CheckLocalStateCorrespondsToPrefs(prefs1);
 
   // Switch user back.
   user_manager->SwitchActiveUser(kTestUsers[0]);
   CheckSettingsCorrespondToPrefs(prefs1);
   CheckLocalStateCorrespondsToPrefs(prefs1);
 }
 
 }  // namespace chromeos