[protector] Added UI for invalid Preferences backup case.

chrome/browser/protector/session_startup_change.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 "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/prefs/session_startup_pref.h"
 #include "chrome/browser/protector/base_setting_change.h"
 #include "chrome/browser/protector/histograms.h"
 #include "chrome/browser/protector/protector_service.h"
 #include "chrome/browser/protector/protector_service_factory.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
 namespace protector {
 
-// STARTUP_SETTING and session startup settings change tracked by Protector.
+// Session startup settings change tracked by Protector.
 class SessionStartupChange : public BaseSettingChange {
  public:
   SessionStartupChange(const SessionStartupPref& actual,
                        const SessionStartupPref& backup);
 
   // BaseSettingChange overrides:
   virtual bool Init(Profile* profile) OVERRIDE;
   virtual void Apply(Browser* browser) OVERRIDE;
   virtual void Discard(Browser* browser) OVERRIDE;
   virtual void Timeout() OVERRIDE;
@@ skipping 105 matching lines @@
   return l10n_util::GetStringUTF16(IDS_KEEP_SETTING);
 }
 
 BaseSettingChange* CreateSessionStartupChange(
     const SessionStartupPref& actual,
     const SessionStartupPref& backup) {
   return new SessionStartupChange(actual, backup);
 }
 
 }  // namespace protector