[Extensions] Remove linked_ptr entirely from extensions generated code

chrome/browser/extensions/api/developer_private/developer_private_mangle.cc

Index: chrome/browser/extensions/api/developer_private/developer_private_mangle.cc
diff --git a/chrome/browser/extensions/api/developer_private/developer_private_mangle.cc b/chrome/browser/extensions/api/developer_private/developer_private_mangle.cc
index 7f43b82aeb41fcfe7694669e0116b368b18dfa31..75d64f0a3cd2494e6843e46692647c04a9c41691 100644
--- a/chrome/browser/extensions/api/developer_private/developer_private_mangle.cc
+++ b/chrome/browser/extensions/api/developer_private/developer_private_mangle.cc
@@ -83,7 +83,7 @@ api::developer_private::ItemInfo MangleExtensionInfo(
     scoped_ptr<base::DictionaryValue> value = error.ToValue();
     value->SetInteger("type", static_cast<int>(ExtensionError::MANIFEST_ERROR));
     value->SetInteger("level", static_cast<int>(logging::LOG_WARNING));
-    result.manifest_errors.push_back(make_linked_ptr(value.release()));
+    result.manifest_errors.push_back(std::move(value));
   }
   for (const api::developer_private::RuntimeError& error :
        info.runtime_errors) {
@@ -95,7 +95,7 @@ api::developer_private::ItemInfo MangleExtensionInfo(
     else if (error.severity == api::developer_private::ERROR_LEVEL_ERROR)
       severity = logging::LOG_ERROR;
     value->SetInteger("level", static_cast<int>(severity));
-    result.runtime_errors.push_back(make_linked_ptr(value.release()));
+    result.runtime_errors.push_back(std::move(value));
   }
   result.offline_enabled = info.offline_enabled;
   for (const api::developer_private::ExtensionView& view : info.views) {