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

chrome/browser/extensions/extension_prefs.cc

 // Copyright (c) 2012 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 "chrome/browser/extensions/extension_prefs.h"
 
 #include "base/command_line.h"
 #include "base/prefs/pref_notifier.h"
 #include "base/prefs/pref_service.h"
 #include "base/string_util.h"
@@ skipping 1652 matching lines @@
   DictionaryValue* extension_dict = new DictionaryValue();
   PopulateExtensionInfoPrefs(extension, time_provider_->GetCurrentTime(),
                              initial_state, extension_dict);
 
   // Add transient data that is needed by FinishDelayedInstallInfo(), but
   // should not be in the final extension prefs. All entries here should have
   // a corresponding Remove() call in FinishDelayedInstallInfo().
   if (extension->RequiresSortOrdinal()) {
     extension_dict->SetString(
         kPrefSuggestedPageOrdinal,
-        page_ordinal.IsValid() ? page_ordinal.ToInternalValue() : "");
+        page_ordinal.IsValid() ? page_ordinal.ToInternalValue()
+                               : std::string());
   }
 
   UpdateExtensionPref(extension->id(), kDelayedInstallInfo, extension_dict);
 }
 
 bool ExtensionPrefs::RemoveDelayedInstallInfo(
     const std::string& extension_id) {
   if (!GetExtensionPref(extension_id))
     return false;
   ScopedExtensionPrefUpdate update(prefs_, extension_id);
@@ skipping 675 matching lines @@
     is_enabled = initial_state == Extension::ENABLED;
   }
 
   extension_pref_value_map_->RegisterExtension(extension_id, install_time,
                                                is_enabled);
   content_settings_store_->RegisterExtension(extension_id, install_time,
                                              is_enabled);
 }
 
 }  // namespace extensions