Continue to clean c_str() calls.

printing/backend/print_backend_cups.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 "printing/backend/print_backend_cups.h"
 
 #include <cups/ppd.h>
 #include <dlfcn.h>
 #include <errno.h>
 #include <pthread.h>
@@ skipping 191 matching lines @@
   int encryption = HTTP_ENCRYPT_NEVER;
   if (print_backend_settings) {
     print_backend_settings->GetString(kCUPSPrintServerURL,
                                       &print_server_url_str);
 
     print_backend_settings->GetString(kCUPSBlocking,
                                       &cups_blocking);
 
     print_backend_settings->GetInteger(kCUPSEncryption, &encryption);
   }
-  GURL print_server_url(print_server_url_str.c_str());
+  GURL print_server_url(print_server_url_str);
   return new PrintBackendCUPS(print_server_url,
                               static_cast<http_encryption_t>(encryption),
                               cups_blocking == kValueTrue);
 }
 #endif  // !defined(OS_CHROMEOS)
 
 int PrintBackendCUPS::GetDests(cups_dest_t** dests) {
   if (print_server_url_.is_empty()) {  // Use default (local) print server.
     // GnuTLS has a genuine small memory leak that is easier to annotate
     // than suppress. See http://crbug.com/176888#c7
@@ skipping 62 matching lines @@
   // Use default (local) print server.
   if (print_server_url_.is_empty())
     return cupsGetNamedDest(CUPS_HTTP_DEFAULT, printer_name.c_str(), nullptr);
 
   HttpConnectionCUPS http(print_server_url_, cups_encryption_);
   http.SetBlocking(blocking_);
   return cupsGetNamedDest(http.http(), printer_name.c_str(), nullptr);
 }
 
 }  // namespace printing