Adding a previews object, PreviewsDataSavings

components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc b/components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc
index ea2a3f4a8faff37e2b1b914a60bdf5575e6d434d..fbfc0e91c34671552bdd01a0295ba8a103d10674 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.cc
@@ -359,15 +359,22 @@ void DataReductionProxySettings::GetContentLengths(
     int64_t* original_content_length,
     int64_t* received_content_length,
     int64_t* last_update_time) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(data_reduction_proxy_service_->compression_stats());
 
   data_reduction_proxy_service_->compression_stats()->GetContentLengths(
       days, original_content_length, received_content_length, last_update_time);
 }
 
-bool DataReductionProxySettings::IsDataSaverEnabled() const {
-  return IsDataReductionProxyEnabled();
+bool DataReductionProxySettings::UpdateDataSavings(
+    const std::string& data_usage_host,
+    int64_t data_used,
+    int64_t original_size) {
+  if (!IsDataReductionProxyEnabled())
+    return false;
+  data_reduction_proxy_service_->compression_stats()->UpdateDataSavings(
+      data_usage_host, data_used, original_size);
+  return true;
 }
 
 }  // namespace data_reduction_proxy