Add Data Saver support to Cronet

components/cronet/url_request_context_config.cc

Index: components/cronet/url_request_context_config.cc
diff --git a/components/cronet/url_request_context_config.cc b/components/cronet/url_request_context_config.cc
index c8f2150e6bcc0ab6062b126f11f97bdb7d0423db..b600807f28335c1fd3d3b9103ab391266da20575 100644
--- a/components/cronet/url_request_context_config.cc
+++ b/components/cronet/url_request_context_config.cc
@@ -106,6 +106,18 @@ void URLRequestContextConfig::RegisterJSONConverter(
   converter->RegisterStringField(
       REQUEST_CONTEXT_CONFIG_QUIC_OPTIONS,
       &URLRequestContextConfig::quic_connection_options);
+  converter->RegisterStringField(
+      REQUEST_CONTEXT_CONFIG_DATA_REDUCTION_PRIMARY_PROXY,
+      &URLRequestContextConfig::data_reduction_primary_proxy);
+  converter->RegisterStringField(
+      REQUEST_CONTEXT_CONFIG_DATA_REDUCTION_FALLBACK_PROXY,
+      &URLRequestContextConfig::data_reduction_fallback_proxy);
+  converter->RegisterStringField(
+      REQUEST_CONTEXT_CONFIG_DATA_REDUCTION_SECURE_PROXY_CHECK_URL,
+      &URLRequestContextConfig::data_reduction_secure_proxy_check_url);
+  converter->RegisterStringField(
+      REQUEST_CONTEXT_CONFIG_DATA_REDUCTION_PROXY_KEY,
+      &URLRequestContextConfig::data_reduction_proxy_key);
 }
 
 }  // namespace cronet