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.cc

Index: chrome/browser/net/basic_http_user_agent_settings.cc
===================================================================
--- chrome/browser/net/basic_http_user_agent_settings.cc	(revision 255867)
+++ chrome/browser/net/basic_http_user_agent_settings.cc	(working copy)
@@ -1,24 +0,0 @@
-// 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 "chrome/browser/net/basic_http_user_agent_settings.h"
-
-#include "content/public/common/content_client.h"
-
-BasicHttpUserAgentSettings::BasicHttpUserAgentSettings(
-    const std::string& accept_language)
-    : accept_language_(accept_language) {
-}
-
-BasicHttpUserAgentSettings::~BasicHttpUserAgentSettings() {
-}
-
-std::string BasicHttpUserAgentSettings::GetAcceptLanguage() const {
-  return accept_language_;
-}
-
-std::string BasicHttpUserAgentSettings::GetUserAgent(const GURL& url) const {
-  return content::GetUserAgent(url);
-}
-