Stop sending Accept-Charset HTTP header.

net/url_request/static_http_user_agent_settings.h

 // 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.
 
 #ifndef NET_URL_REQUEST_STATIC_HTTP_USER_AGENT_SETTINGS_H_
 #define NET_URL_REQUEST_STATIC_HTTP_USER_AGENT_SETTINGS_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "net/base/net_export.h"
 #include "net/url_request/http_user_agent_settings.h"
 
 namespace net {
 
 // An implementation of |HttpUserAgentSettings| that always provides the
-// same constant values for the HTTP Accept-Language, Accept-Charset, and
-// User-Agent headers.
+// same constant values for the HTTP Accept-Language and User-Agent headers.
 class NET_EXPORT StaticHttpUserAgentSettings : public HttpUserAgentSettings {
  public:
   StaticHttpUserAgentSettings(const std::string& accept_language,
-                              const std::string& accept_charset,
                               const std::string& user_agent);
   virtual ~StaticHttpUserAgentSettings();
 
   // HttpUserAgentSettings implementation
   virtual std::string GetAcceptLanguage() const OVERRIDE;
-  virtual std::string GetAcceptCharset() const OVERRIDE;
   virtual std::string GetUserAgent(const GURL& url) const OVERRIDE;
 
  private:
   const std::string accept_language_;
-  const std::string accept_charset_;
   const std::string user_agent_;
 
   DISALLOW_COPY_AND_ASSIGN(StaticHttpUserAgentSettings);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_STATIC_HTTP_USER_AGENT_SETTINGS_H_