net: Update the include paths of base/string_piece.h to its new location.

net/websockets/websocket_handshake_handler.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 "net/websockets/websocket_handshake_handler.h"
 
 #include "base/base64.h"
 #include "base/md5.h"
 #include "base/sha1.h"
 #include "base/string_number_conversions.h"
-#include "base/string_piece.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
+#include "base/strings/string_piece.h"
 #include "base/strings/string_tokenizer.h"
 #include "googleurl/src/gurl.h"
 #include "net/http/http_response_headers.h"
 #include "net/http/http_util.h"
 
 namespace {
 
 const size_t kRequestKey3Size = 8U;
 const size_t kResponseKeySize = 16U;
 
@@ skipping 533 matching lines @@
   return status_line_ + headers_ + header_separator_ + key_;
 }
 
 size_t WebSocketHandshakeResponseHandler::GetResponseKeySize() const {
   if (protocol_version_ >= kMinVersionOfHybiNewHandshake)
     return 0;
   return kResponseKeySize;
 }
 
 }  // namespace net