Create abstraction for DataReductionProxyParams.

components/data_reduction_proxy.gypi

 # Copyright 2014 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.
 
 
 {
   'targets': [
    {
       # GN Version: //components/data_reduction_proxy/content
       'target_name': 'data_reduction_proxy_content',
@@ skipping 119 matching lines @@
       'dependencies': [
         '../base/base.gyp:base',
         '../url/url.gyp:url_lib',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         # Note: sources list duplicated in GN build.
         'data_reduction_proxy/core/common/data_reduction_proxy_bypass_type_list.h',
+        'data_reduction_proxy/core/common/data_reduction_proxy_config_values.h',
         'data_reduction_proxy/core/common/data_reduction_proxy_event_store.cc',
         'data_reduction_proxy/core/common/data_reduction_proxy_event_store.h',
         'data_reduction_proxy/core/common/data_reduction_proxy_headers.cc',
         'data_reduction_proxy/core/common/data_reduction_proxy_headers.h',
         'data_reduction_proxy/core/common/data_reduction_proxy_params.cc',
         'data_reduction_proxy/core/common/data_reduction_proxy_params.h',
         'data_reduction_proxy/core/common/data_reduction_proxy_pref_names.cc',
         'data_reduction_proxy/core/common/data_reduction_proxy_pref_names.h',
         'data_reduction_proxy/core/common/data_reduction_proxy_switches.cc',
         'data_reduction_proxy/core/common/data_reduction_proxy_switches.h',
@@ skipping 61 matching lines @@
             '<@(_outputs)',
           ],
           'includes': [
             '../build/util/version.gypi',
           ],
         },
       ],
     },
   ],
 }