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

chrome/browser/plugins/plugin_finder.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/plugins/plugin_finder.h"
 
 #include "base/bind.h"
 #include "base/json/json_reader.h"
 #include "base/message_loop.h"
 #include "base/prefs/pref_registry_simple.h"
@@ skipping 274 matching lines @@
       continue;
 
     return it->second->Clone();
   }
 
   // The plug-in metadata was not found, create a dummy one holding
   // the name, identifier and group name only.
   std::string identifier = GetIdentifier(plugin);
   PluginMetadata* metadata = new PluginMetadata(identifier,
                                                 GetGroupName(plugin),
-                                                false, GURL(), GURL(),
+                                                false,
+                                                GURL(),
+                                                GURL(),
                                                 plugin.name,
-                                                "");
+                                                std::string());
   for (size_t i = 0; i < plugin.mime_types.size(); ++i)
     metadata->AddMatchingMimeType(plugin.mime_types[i].mime_type);
 
   DCHECK(metadata->MatchesPlugin(plugin));
   if (identifier_plugin_.find(identifier) != identifier_plugin_.end())
     identifier = GetLongIdentifier(plugin);
 
   DCHECK(identifier_plugin_.find(identifier) == identifier_plugin_.end());
   identifier_plugin_[identifier] = metadata;
   return metadata->Clone();
 }