Rename the Data Saver main menu flags

components/data_reduction_proxy/core/common/data_reduction_proxy_features.cc

 // Copyright 2017 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 "components/data_reduction_proxy/core/common/data_reduction_proxy_features.h"
 
 namespace data_reduction_proxy {
 namespace features {
 
-// Enables the Data Reduction Proxy menu item in the main menu rather than under
-// Settings on Android.
+// Enables the Data Reduction Proxy footer in the main menu on Android.
 const base::Feature kDataReductionMainMenu{"DataReductionProxyMainMenu",
                                            base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Enables the site breakdown on the Data Reduction Proxy settings page.
 const base::Feature kDataReductionSiteBreakdown{
     "DataReductionProxySiteBreakdown", base::FEATURE_DISABLED_BY_DEFAULT};
 
 }  // namespace features
 }  // namespace data_reduction_proxy