Revert 239759 "The comment in base64.h implies that base::Base64..."

trunk/src/google_apis/cup/client_update_protocol.cc

Index: trunk/src/google_apis/cup/client_update_protocol.cc
===================================================================
--- trunk/src/google_apis/cup/client_update_protocol.cc	(revision 239920)
+++ trunk/src/google_apis/cup/client_update_protocol.cc	(working copy)
@@ -122,7 +122,8 @@
 // needed.  Call the standard Base64 encoder/decoder and then apply fixups.
 std::string UrlSafeB64Encode(const std::vector<uint8>& data) {
   std::string result;
-  base::Base64Encode(ByteVectorToSP(data), &result);
+  if (!base::Base64Encode(ByteVectorToSP(data), &result))
+    return std::string();
 
   // Do an tr|+/|-_| on the output, and strip any '=' padding.
   for (std::string::iterator it = result.begin(); it != result.end(); ++it) {
@@ -301,3 +302,4 @@
 
   return true;
 }
+