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

extensions/common/manifest_handlers/action_handlers_handler.cc

 // Copyright 2017 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 "extensions/common/manifest_handlers/action_handlers_handler.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 24 matching lines @@
 ActionHandlersHandler::~ActionHandlersHandler() = default;
 
 bool ActionHandlersHandler::Parse(Extension* extension, base::string16* error) {
   const base::ListValue* entries = nullptr;
   if (!extension->manifest()->GetList(keys::kActionHandlers, &entries)) {
     *error = base::ASCIIToUTF16(errors::kInvalidActionHandlersType);
     return false;
   }
 
   auto info = base::MakeUnique<ActionHandlersInfo>();
-  for (const base::Value& wrapped_value : *entries) {
+  for (const std::unique_ptr<base::Value>& wrapped_value : *entries) {
     std::string value;
-    if (!wrapped_value.GetAsString(&value)) {
+    if (!wrapped_value->GetAsString(&value)) {
       *error = base::ASCIIToUTF16(errors::kInvalidActionHandlersType);
       return false;
     }
 
     app_runtime::ActionType action_type = app_runtime::ParseActionType(value);
     if (action_type == app_runtime::ACTION_TYPE_NONE) {
       *error = ErrorUtils::FormatErrorMessageUTF16(
           errors::kInvalidActionHandlersActionType, value);
       return false;
     }
 
     info->action_handlers.insert(action_type);
   }
 
   extension->SetManifestData(keys::kActionHandlers, std::move(info));
   return true;
 }
 
 const std::vector<std::string> ActionHandlersHandler::Keys() const {
   return SingleKey(keys::kActionHandlers);
 }
 
 }  // namespace extensions