Correct const accessors in base/values.(h|cc), Part II (ListValue)

chrome/browser/ui/webui/ntp/app_launcher_handler.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/webui/ntp/app_launcher_handler.h"
 
 #include <string>
 #include <vector>
 
 #include "base/auto_reset.h"
@@ skipping 632 matching lines @@
   Browser* browser = browser::FindBrowserWithWebContents(
         web_ui()->GetWebContents());
   browser->window()->ShowCreateChromeAppShortcutsDialog(
       browser->profile(), extension);
 }
 
 void AppLauncherHandler::HandleReorderApps(const ListValue* args) {
   CHECK(args->GetSize() == 2);
 
   std::string dragged_app_id;
-  ListValue* app_order;
+  const ListValue* app_order;
   CHECK(args->GetString(0, &dragged_app_id));
   CHECK(args->GetList(1, &app_order));
 
   std::string predecessor_to_moved_ext;
   std::string successor_to_moved_ext;
   for (size_t i = 0; i < app_order->GetSize(); ++i) {
     std::string value;
     if (app_order->GetString(i, &value) && value == dragged_app_id) {
       if (i > 0)
         CHECK(app_order->GetString(i - 1, &predecessor_to_moved_ext));
@@ skipping 331 matching lines @@
 
 void AppLauncherHandler::UninstallDefaultApps() {
   AppsPromo* apps_promo = extension_service_->apps_promo();
   const extensions::ExtensionIdSet& app_ids = apps_promo->old_default_apps();
   for (extensions::ExtensionIdSet::const_iterator iter = app_ids.begin();
        iter != app_ids.end(); ++iter) {
     if (extension_service_->GetExtensionById(*iter, true))
       extension_service_->UninstallExtension(*iter, false, NULL);
   }
 }