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

chrome/browser/extensions/extension_protocols.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_protocols.h"
 
 #include <algorithm>
 
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
@@ skipping 302 matching lines @@
   // don't have it, allow the request handling to continue with the rest of the
   // checks.
   if (!extension)
     return true;
 
   // Disallow loading of packaged resources for hosted apps. We don't allow
   // hybrid hosted/packaged apps. The one exception is access to icons, since
   // some extensions want to be able to do things like create their own
   // launchers.
   std::string resource_root_relative_path =
-      request->url().path().empty() ? "" : request->url().path().substr(1);
+      request->url().path().empty() ? std::string()
+                                    : request->url().path().substr(1);
   if (extension->is_hosted_app() &&
       !extensions::IconsInfo::GetIcons(extension)
           .ContainsPath(resource_root_relative_path)) {
     LOG(ERROR) << "Denying load of " << request->url().spec() << " from "
                << "hosted app.";
     return false;
   }
 
   // Extensions with web_accessible_resources: allow loading by regular
   // renderers. Since not all subresources are required to be listed in a v2
@@ skipping 135 matching lines @@
                                     send_cors_header);
 }
 
 }  // namespace
 
 net::URLRequestJobFactory::ProtocolHandler* CreateExtensionProtocolHandler(
     bool is_incognito,
     ExtensionInfoMap* extension_info_map) {
   return new ExtensionProtocolHandler(is_incognito, extension_info_map);
 }