[WIP] make GURL::path() return a StringPiece

chrome/common/cloud_print/cloud_print_helpers.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/common/cloud_print/cloud_print_helpers.h"
 
 #include <stdint.h>
 
 #include <limits>
 #include <memory>
@@ skipping 33 matching lines @@
     values_list.append(it->first);
     values_list.append(it->second);
   }
   return base::MD5String(values_list);
 }
 
 }  // namespace
 
 std::string AppendPathToUrl(const GURL& url, const std::string& path) {
   DCHECK_NE(path[0], '/');
-  std::string ret = url.path();
+  std::string ret = url.path().as_string();
   if (url.has_path() && (ret.back() != '/'))
     ret += '/';
   ret += path;
   return ret;
 }
 
 GURL GetUrlForSearch(const GURL& cloud_print_server_url) {
   std::string path(AppendPathToUrl(cloud_print_server_url, "search"));
   GURL::Replacements replacements;
   replacements.SetPathStr(path);
@@ skipping 173 matching lines @@
   net::AddMultipartValueForUpload(kPrinterTagValue, tags_hash_msg,
       mime_boundary, std::string(), &post_data);
   return post_data;
 }
 
 std::string GetCloudPrintAuthHeader(const std::string& auth_token) {
   return base::StringPrintf("Authorization: OAuth %s", auth_token.c_str());
 }
 
 }  // namespace cloud_print