base: Remove using declaration of MD5Digest now that hunspell was fixed.

chrome/browser/chromeos/web_socket_proxy.cc

 // Copyright (c) 2011 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 "chrome/browser/chromeos/web_socket_proxy.h"
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ skipping 342 matching lines @@
   Chan primchan_;
   // Destination channel is a proxied connection.
   Chan destchan_;
 
   EventKey evkey_;
 
   // Header fields supplied by client at initial websocket handshake.
   std::map<std::string, std::string> header_fields_;
 
   // Cryptohashed answer for websocket handshake.
-  MD5Digest handshake_response_;
+  base::MD5Digest handshake_response_;
 
   // Hostname and port of destination socket.
   // Websocket client supplies them in first data frame (destframe).
   std::string destname_;
   uint32 destport_;
 
   // We try to DNS resolve hostname in both IPv4 and IPv6 domains.
   // Track resolution failures here.
   bool destresolution_ipv4_failed_;
   bool destresolution_ipv6_failed_;
@@ skipping 915 matching lines @@
 void WebSocketProxy::Run() {
   static_cast<Serv*>(impl_)->Run();
 }
 
 void WebSocketProxy::Shutdown() {
   static_cast<Serv*>(impl_)->Shutdown();
 }
 
 }  // namespace chromeos