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

net/ftp/ftp_network_transaction.cc

Index: net/ftp/ftp_network_transaction.cc
diff --git a/net/ftp/ftp_network_transaction.cc b/net/ftp/ftp_network_transaction.cc
index 8ecde3104de06e93f15218764c8ae756c40a1f6a..bc66faa5c8d7545247b9dba2981e34cec7567426 100644
--- a/net/ftp/ftp_network_transaction.cc
+++ b/net/ftp/ftp_network_transaction.cc
@@ -475,7 +475,7 @@ std::string FtpNetworkTransaction::GetRequestPathForFtpCommand(
     bool is_directory) const {
   std::string path(current_remote_directory_);
   if (request_->url.has_path()) {
-    std::string gurl_path(request_->url.path());
+    std::string gurl_path(request_->url.path().as_string());
 
     // Get rid of the typecode, see RFC 1738 section 3.2.2. FTP url-path.
     std::string::size_type pos = gurl_path.rfind(';');
@@ -509,7 +509,7 @@ std::string FtpNetworkTransaction::GetRequestPathForFtpCommand(
 void FtpNetworkTransaction::DetectTypecode() {
   if (!request_->url.has_path())
     return;
-  std::string gurl_path(request_->url.path());
+  std::string gurl_path(request_->url.path().as_string());
 
   // Extract the typecode, see RFC 1738 section 3.2.2. FTP url-path.
   std::string::size_type pos = gurl_path.rfind(';');