Convert implicit scoped_refptr constructor calls to explicit ones, part 1

chrome/browser/extensions/extensions_service.cc

Index: chrome/browser/extensions/extensions_service.cc
diff --git a/chrome/browser/extensions/extensions_service.cc b/chrome/browser/extensions/extensions_service.cc
index 5c816700d5231e785289b6d889a42c7721572297..4b5b2c115bf916e925174a8136d8418bc78d79ee 100644
--- a/chrome/browser/extensions/extensions_service.cc
+++ b/chrome/browser/extensions/extensions_service.cc
@@ -295,11 +295,11 @@ void ExtensionsServiceBackend::LoadSingleExtension(
   file_util::AbsolutePath(&extension_path);
 
   std::string error;
-  scoped_refptr<const Extension> extension = extension_file_util::LoadExtension(
+  scoped_refptr<const Extension> extension(extension_file_util::LoadExtension(
       extension_path,
       Extension::LOAD,
       false,  // Don't require id
-      &error);
+      &error));
 
   if (!extension) {
     ReportExtensionLoadError(extension_path, error);