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

chrome/browser/extensions/api/system_private/system_private_api.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 "chrome/browser/extensions/api/system_private/system_private_api.h"
 
 #include "base/prefs/pref_service.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/event_router_forwarder.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/api/system_private.h"
 #include "chrome/common/pref_names.h"
 #include "google_apis/google_api_keys.h"
 
 #if defined(OS_CHROMEOS)
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/update_engine_client.h"
 #else
 #include "chrome/browser/upgrade_detector.h"
 #endif
 
 namespace {
 
 // Maps prefs::kIncognitoModeAvailability values (0 = enabled, ...)
 // to strings exposed to extensions.
-const char* kIncognitoModeAvailabilityStrings[] = {
+const char* const kIncognitoModeAvailabilityStrings[] = {
   "enabled",
   "disabled",
   "forced"
 };
 
 // Property keys.
 const char kBrightnessKey[] = "brightness";
 const char kDownloadProgressKey[] = "downloadProgress";
 const char kIsVolumeMutedKey[] = "isVolumeMuted";
 const char kStateKey[] = "state";
@@ skipping 117 matching lines @@
 
 void DispatchScreenUnlockedEvent() {
   DispatchEvent(system_private::OnScreenUnlocked::kEventName, NULL);
 }
 
 void DispatchWokeUpEvent() {
   DispatchEvent(system_private::OnWokeUp::kEventName, NULL);
 }
 
 }  // namespace extensions