Simplify the user agent code some more since after r255534 it's not affected by the site's URL.

chrome/browser/net/basic_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 CHROME_BROWSER_NET_BASIC_HTTP_USER_AGENT_SETTINGS_H_
-#define CHROME_BROWSER_NET_BASIC_HTTP_USER_AGENT_SETTINGS_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "net/url_request/http_user_agent_settings.h"
-
-// An implementation of |HttpUserAgentSettings| that provides fixed value for
-// the Accept-Language HTTP header and uses |content::GetUserAgent| to provide
-// the HTTP User-Agent header value.
-class BasicHttpUserAgentSettings : public net::HttpUserAgentSettings {
- public:
-  explicit BasicHttpUserAgentSettings(const std::string& accept_language);
-  virtual ~BasicHttpUserAgentSettings();
-
-  // HttpUserAgentSettings implementation
-  virtual std::string GetAcceptLanguage() const OVERRIDE;
-  virtual std::string GetUserAgent(const GURL& url) const OVERRIDE;
-
- private:
-  const std::string accept_language_;
-
-  DISALLOW_COPY_AND_ASSIGN(BasicHttpUserAgentSettings);
-};
-
-#endif  // CHROME_BROWSER_NET_BASIC_HTTP_USER_AGENT_SETTINGS_H_
-