Revert 257524 "Move IsStringASCII/UTF8 to base namespace."

trunk/src/net/ftp/ftp_network_transaction.cc

Index: trunk/src/net/ftp/ftp_network_transaction.cc
===================================================================
--- trunk/src/net/ftp/ftp_network_transaction.cc	(revision 257532)
+++ trunk/src/net/ftp/ftp_network_transaction.cc	(working copy)
@@ -152,7 +152,7 @@
     return false;
 
   std::string line(response.lines[0]);
-  if (!base::IsStringASCII(line))
+  if (!IsStringASCII(line))
     return false;
   if (line.length() < 2)
     return false;
@@ -830,7 +830,7 @@
       // The response should be ASCII, which allows us to do case-insensitive
       // comparisons easily. If it is not ASCII, we leave the system type
       // as unknown.
-      if (base::IsStringASCII(line)) {
+      if (IsStringASCII(line)) {
         line = StringToLowerASCII(line);
 
         // Remove all whitespace, to correctly handle cases like fancy "V M S"