Revert of Change base::Value::ListStorage to std::vector<base::Value>

chrome/browser/ui/webui/options/content_settings_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/options/content_settings_handler.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 923 matching lines @@
   const auto* extension_registry =
       extensions::ExtensionRegistry::Get(GetProfile());
   base::ListValue exceptions;
   site_settings::GetExceptionsFromHostContentSettingsMap(
       settings_map, type, extension_registry, web_ui(), /*incognito=*/false,
       /*filter=*/nullptr, &exceptions);
 
   settings.exceptions.clear();
   for (base::ListValue::const_iterator entry = exceptions.begin();
        entry != exceptions.end(); ++entry) {
-    const base::DictionaryValue* dict = nullptr;
-    bool valid_dict = entry->GetAsDictionary(&dict);
+    base::DictionaryValue* dict = nullptr;
+    bool valid_dict = (*entry)->GetAsDictionary(&dict);
     DCHECK(valid_dict);
 
     std::string origin;
     std::string setting;
     dict->GetString(site_settings::kOrigin, &origin);
     dict->GetString(site_settings::kSetting, &setting);
 
     ContentSetting setting_type;
     bool result =
         content_settings::ContentSettingFromString(setting, &setting_type);
@@ skipping 529 matching lines @@
 
   // Exceptions apply only when the feature is enabled.
   PrefService* prefs = user_prefs::UserPrefs::Get(GetBrowserContext(web_ui()));
   bool enable_exceptions = prefs->GetBoolean(prefs::kEnableDRM);
   web_ui()->CallJavascriptFunctionUnsafe(
       "ContentSettings.enableProtectedContentExceptions",
       base::Value(enable_exceptions));
 }
 
 }  // namespace options