More -Wunused-private-field cleanups.

chrome/browser/ui/startup/startup_browser_creator_impl.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/ui/startup/startup_browser_creator_impl.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/compiler_specific.h"
 #include "base/environment.h"
@@ skipping 873 matching lines @@
         PinnedTabCodec::ReadPinnedTabs(tabs_backup)));
   }
 
   // Check for homepage changes.
   if (prefs_watcher->DidPrefChange(prefs::kHomePage) ||
       prefs_watcher->DidPrefChange(prefs::kHomePageIsNewTabPage) ||
       prefs_watcher->DidPrefChange(prefs::kShowHomeButton)) {
     LOG(WARNING) << "Homepage has changed";
     PrefService* prefs = profile->GetPrefs();
     std::string backup_homepage;
-    bool backup_homepage_is_ntp;
-    bool backup_show_home_button;
+    bool backup_homepage_is_ntp = false;
+    bool backup_show_home_button = false;
     if (!prefs_watcher->GetBackupForPref(prefs::kHomePage)->
             GetAsString(&backup_homepage) ||
         !prefs_watcher->GetBackupForPref(prefs::kHomePageIsNewTabPage)->
             GetAsBoolean(&backup_homepage_is_ntp) ||
         !prefs_watcher->GetBackupForPref(prefs::kShowHomeButton)->
             GetAsBoolean(&backup_show_home_button)) {
       NOTREACHED();
     }
     protector_service->ShowChange(protector::CreateHomepageChange(
         // New:
         prefs->GetString(prefs::kHomePage),
         prefs->GetBoolean(prefs::kHomePageIsNewTabPage),
         prefs->GetBoolean(prefs::kShowHomeButton),
         // Backup:
         backup_homepage,
         backup_homepage_is_ntp,
         backup_show_home_button));
   }
 }