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

net/ftp/ftp_util.cc

 // Copyright (c) 2011 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 "net/ftp/ftp_util.h"
 
 #include <map>
 #include <vector>
 
 #include "base/i18n/case_conversion.h"
@@ skipping 89 matching lines @@
     // Return path as-is.
     return vms_path;
   }
 
   if (vms_path == "[]")
     return "/";
 
   std::string result(vms_path);
   if (vms_path[0] == '[') {
     // It's a relative path.
-    ReplaceFirstSubstringAfterOffset(&result, 0, "[.", "");
+    ReplaceFirstSubstringAfterOffset(&result, 0, "[.", std::string());
   } else {
     // It's an absolute path.
     result.insert(0, "/");
     ReplaceSubstringsAfterOffset(&result, 0, ":[000000]", "/");
     ReplaceSubstringsAfterOffset(&result, 0, ":[", "/");
   }
   std::replace(result.begin(), result.end(), '.', '/');
   std::replace(result.begin(), result.end(), ']', '/');
 
   // Make sure the result doesn't end with a slash.
@@ skipping 246 matching lines @@
     while (!iter.end() && !u_isspace(iter.get()))
       iter.Advance();
   }
 
   base::string16 result(text.substr(iter.array_pos()));
   TrimWhitespace(result, TRIM_ALL, &result);
   return result;
 }
 
 }  // namespace