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

net/spdy/spdy_http_utils.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 "net/spdy/spdy_http_utils.h"
 
 #include <string>
 
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
@@ skipping 170 matching lines @@
   it = headers.find(scheme_header);
   if (it != headers.end())
     scheme = it->second;
   it = headers.find(host_header);
   if (it != headers.end())
     host_port = it->second;
   it = headers.find(path_header);
   if (it != headers.end())
     path = it->second;
 
-  std::string url =  (scheme.empty() || host_port.empty() || path.empty())
-      ? "" : scheme + "://" + host_port + path;
+  std::string url = (scheme.empty() || host_port.empty() || path.empty())
+                        ? std::string()
+                        : scheme + "://" + host_port + path;
   return GURL(url);
 }
 
 bool ShouldShowHttpHeaderValue(const std::string& header_name) {
 #if defined(SPDY_PROXY_AUTH_ORIGIN)
   if (header_name == "proxy-authorization")
     return false;
 #endif
   return true;
 }
 
 }  // namespace net