Add scoped_ptr-safe base::Value to Dictionary/List conversion functions.

extensions/common/extension_api.cc

 // Copyright 2013 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/extension_api.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 42 matching lines @@
 
   // Tracking down http://crbug.com/121424
   char buf[128];
   base::snprintf(buf, arraysize(buf), "%s: (%d) '%s'",
       name.c_str(),
       result.get() ? result->GetType() : -1,
       error_message.c_str());
 
   CHECK(result.get()) << error_message << " for schema " << schema;
   CHECK(result->IsType(base::Value::TYPE_LIST)) << " for schema " << schema;
-  return scoped_ptr<base::ListValue>(static_cast<base::ListValue*>(
-      result.release()));
+  return base::ListValue::From(result.Pass());
 }
 
 const base::DictionaryValue* FindListItem(const base::ListValue* list,
                                           const std::string& property_name,
                                           const std::string& property_value) {
   for (size_t i = 0; i < list->GetSize(); ++i) {
     const base::DictionaryValue* item = NULL;
     CHECK(list->GetDictionary(i, &item))
         << property_value << "/" << property_name;
     std::string value;
@@ skipping 310 matching lines @@
       break;
 
     api_name_candidate = api_name_candidate.substr(0, last_dot_index);
   }
 
   *child_name = "";
   return std::string();
 }
 
 }  // namespace extensions