Revert 255397 "Fill out the rest of the StringPiece functions fo..."

trunk/src/net/websockets/websocket_basic_handshake_stream.cc

 // Copyright 2013 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 "net/websockets/websocket_basic_handshake_stream.h"
 
 #include <algorithm>
 #include <iterator>
 #include <set>
 #include <string>
@@ skipping 207 matching lines @@
         "Sent non-empty 'Sec-WebSocket-Protocol' header "
         "but no response was received";
     return false;
   }
   *sub_protocol = value;
   return true;
 }
 
 bool DeflateError(std::string* message, const base::StringPiece& piece) {
   *message = "Error in permessage-deflate: ";
-  piece.AppendToString(message);
+  AppendToString(piece, message);
   return false;
 }
 
 bool ValidatePerMessageDeflateExtension(const WebSocketExtension& extension,
                                         std::string* failure_message,
                                         WebSocketExtensionParams* params) {
   static const char kClientPrefix[] = "client_";
   static const char kServerPrefix[] = "server_";
   static const char kNoContextTakeover[] = "no_context_takeover";
   static const char kMaxWindowBits[] = "max_window_bits";
@@ skipping 371 matching lines @@
                          &extensions_,
                          &failure_message_,
                          extension_params_.get())) {
     return OK;
   }
   failure_message_ = "Error during WebSocket handshake: " + failure_message_;
   return ERR_INVALID_RESPONSE;
 }
 
 }  // namespace net