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

content/browser/tracing/background_tracing_config_impl.cc

 // Copyright 2015 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 "content/browser/tracing/background_tracing_config_impl.h"
 
 #include <utility>
 
 #include "base/macros.h"
 #include "base/values.h"
@@ skipping 215 matching lines @@
   if (!StringToCategoryPreset(category_preset_string,
                               &config->category_preset_))
     return nullptr;
 
   const base::ListValue* configs_list = nullptr;
   if (!dict->GetList(kConfigsKey, &configs_list))
     return nullptr;
 
   for (const auto& it : *configs_list) {
     const base::DictionaryValue* config_dict = nullptr;
-    if (!it.GetAsDictionary(&config_dict))
+    if (!it->GetAsDictionary(&config_dict))
       return nullptr;
 
     config->AddPreemptiveRule(config_dict);
   }
 
   if (config->rules().empty())
     return nullptr;
 
   return config;
 }
 
 std::unique_ptr<BackgroundTracingConfigImpl>
 BackgroundTracingConfigImpl::ReactiveFromDict(
     const base::DictionaryValue* dict) {
   DCHECK(dict);
 
   std::unique_ptr<BackgroundTracingConfigImpl> config(
       new BackgroundTracingConfigImpl(BackgroundTracingConfigImpl::REACTIVE));
 
   const base::ListValue* configs_list = nullptr;
   if (!dict->GetList(kConfigsKey, &configs_list))
     return nullptr;
 
   for (const auto& it : *configs_list) {
     const base::DictionaryValue* config_dict = nullptr;
-    if (!it.GetAsDictionary(&config_dict))
+    if (!it->GetAsDictionary(&config_dict))
       return nullptr;
 
     std::string category_preset_string;
     if (!config_dict->GetString(kConfigCategoryKey, &category_preset_string))
       return nullptr;
 
     BackgroundTracingConfigImpl::CategoryPreset new_category_preset;
     if (!StringToCategoryPreset(category_preset_string, &new_category_preset))
       return nullptr;
 
     config->AddReactiveRule(config_dict, new_category_preset);
   }
 
   if (config->rules().empty())
     return nullptr;
 
   return config;
 }
 
 }  // namspace content