Rewrite std::string("") to std::string(), Linux edition.

chrome/browser/extensions/menu_manager.cc

Index: chrome/browser/extensions/menu_manager.cc
diff --git a/chrome/browser/extensions/menu_manager.cc b/chrome/browser/extensions/menu_manager.cc
index 033586672dd37673f13c04d11a26f395fb09d138..4256c613052ee547107ea2fa1a0f0245132a0062 100644
--- a/chrome/browser/extensions/menu_manager.cc
+++ b/chrome/browser/extensions/menu_manager.cc
@@ -833,14 +833,10 @@ void MenuManager::RemoveAllIncognitoContextItems() {
     RemoveContextMenuItem(*remove_iter);
 }
 
-MenuItem::Id::Id()
-    : incognito(false), extension_id(""), uid(0), string_uid("") {
-}
+MenuItem::Id::Id() : incognito(false), uid(0) {}
 
 MenuItem::Id::Id(bool incognito, const std::string& extension_id)
-    : incognito(incognito), extension_id(extension_id), uid(0),
-      string_uid("") {
-}
+    : incognito(incognito), extension_id(extension_id), uid(0) {}
 
 MenuItem::Id::~Id() {
 }